Mmmm. That does remind me of the 'Big Haul' adventure I once ran. I had to cut down the haul from 'we stole three cargo vessels full of stuff' to 'we stole a cargo container full of stuff'.
A cargo container (1 TEU, the most common dimensions for which are 20 feet (6.1 m) long, 8 feet (2.44 m) wide, and 8 feet 6 inches (2.59 m) high, for a volume of 1,360 cubic feet (39 m3) will maximum-mass transport approximately 21,600 kg. Convert that into something mass-to-cash friendly, and you're looking at quite a big chunk of change - if 1 kilo is worth 10k, then you're looking at roughly 21,000,000¥ for a cargo container full of drugs. This presumes, however, that it'll get cut and split at the destination; if you're sharp, you dial it back to having already been processed and packaged for distribution.
Now, since we want numbers to come out clean, we'll call a hit-plus-packaging equivalent to 33 1/3 grams of weight/mass - so that we get 3 per 100 grams, and 30 per kilogram. That allows us to stuff our 21,000 kg space with 630,000 doses which, at 10¥ a pop, gives us a street value of 'only' 6,300,000¥. Sell that at 30%, and you'll get 1,890,000¥ for it. A wiser player will sell it quickly for only 10%, and vanish into the shadows with 630,000¥ ...
... much better for RP purposes (when split between 8 people) than three 1500-TEU feeder ship at 10% netting the group a hundred million ...
