Thanks for the broad plan, Mal. Very interesting! Let's walk through it step by step:
1. Get updated photos of the artifact, including astral plates
Taking new visual photos is easy. As for quicksilver photos, Katsina took three good ones. We delivered one to DIMR so we still have two available. New quicksilver photographs would look almost exactly the same as what we already have. All we've altered is the mundane base. Astrally, the obelisk looks pretty much unchanged. (Technically the base is a different shape, but you'd only be able to tell by its astral silhouette. Since you took the quicksilver photos in the van, specifically for the black astral background, the change in the base will not be noticeable.)
2. Re-bury it (possibly with Sam's surprise attached, again with photos in case we need to show how dangerous it would be to try to steal it from us)
Reburying it is easy. Attaching Sam's device isn't a problem either. However, it should be noted that Sam's device isn't 100% tamper proof. It was designed to be extremely difficult to disarm, but it's not impossible.
The challenge of Sam's device is disarming it before Sam triggered it remotely and/or the timer expired. But if someone had an unlimited amount of time and Sam wasn't around to trigger it, it could be disarmed by a professional. Or, since the base is already mangled, they could just cut off the portion of iron that the device is attached to and then dispose of the device separately.
3. Use Doc's insane logic to do some chemistry tests in order to melt and separate the fairly low melting point metals (set heat to above melting point of metal 1 but below metal 2, separate the solid from the liquid, repeat for metal 2&3, etc)
The value of the precious metals is about evenly split between gold and osmium. Melting out the gold is possible. (A fire spirit would make it a cinch, but sadly that's not one in Ohanzee's tool belt.) Melting out the osmium is well beyond your capabilities.
4. Use Ohanzee and Katsina's artisan abilities to craft it in to reasonable facsimiles of trinkets and baubles - rings, pendants, letter openers, other simple items usually made from precious metals - so that it doesn't raise too much suspicion when we go to sell them
This should be feasible.
5. Start in Rifle with a pawn shop or something to sell a small amount to get some jing. Buy some fly-spys (for scouting) and other items we might need in order to get safely into Denver. From there, we can explore our contacts to offload more of the metals. How much does Ohanzee thing Styles is good for? 10k¥? 50k¥? 100k¥?
The value of the gold you have is ¥473,200. Ohanzee thinks that Styles could eventually move all of it. The drawbacks are 1) the fixer's cut, and 2) it might take him a while to move it all. (A few days, maybe a week.)
6. Get way, way, out of Dodge. Are the Bahamas still nice? Maybe somewhere in California Free State or Florida or anywhere that the weather is nicer. We can buy a new ride with our cash to facilitate this.
This depends on how far you want to go and how much trouble you're willing to take with borders. You can drive straight to Los Angeles, Las Vegas, or Phoenix, all of which are in the PCC and are temperate at this time of year. Hawaii is still a major tourist destination. I'd have to research some of the other options, like the Caribbean League.
7. Send Jäger an "after" picture of the artifact with a note saying that the precious metals alone were worth nearly as much as she felt she should pay for the artifact and that we certainly hope that allowing the desecration of such a major find won't leave a stain on her precious reputation. This works whether the person we talked to was a member of the cult interested in worshipping the artifact or the actual Jäger
If the person you were talking to
wasn't Jäger, then the real Jäger will be quite confused by the message and will probably dismiss it as a hoax or bizarre misunderstanding.
8. Optional: Find out how Jäger was able to get a facsimile of the astral photo into the matrix and try the to shop the artifact itself for a few million nuyen
9. Sip exotic drinks on a tropical beach for a few years, or life, depending on how things work out. Or enjoy moonlight stroll along said beach, depending on your disposition toward sunlight.
So is the rough plan to not contact Cannon immediately? What I'm hearing is that you'll try to shop the artifact remotely. The hurdle for this is how you would handle the exchange. Nobody's going to pay millions of nuyen for a treasure map with "X marks the spot". Any buyer will demand to see the obelisk and verify it's authenticity, before handing over the credsticks.
I'll look at Zweiblumen's posts next.