Hi - yeah, Splintered State has one heck of a payday! But not as much as a live toxic mage...
If you're looking to keep a personal feel for the runners, I would write your own, around one of the runners' backgrounds/ negative qualities. Maybe their mum has been framed for a murder, or that corporate SIN quality still has strings attached. Having runner backgrounds to hit off can make adventures alot easier to write. Also, if they've just finished 'State, they will have inadvertantly made themselves some friends and enemies - the ork underground, the mayor, major corporations...
The issue with the published campaigns is the dates are next year, although you could fudge the dates if you wish:
Splintered State: Spring 75
Lockdown: Early to Mid 76
Battle of Manhatten (adventure): Late 76
Bloody Business: Late 76 to Early 77
Also, Lockdown will likely require some fleshing out. Sprawl Wilds is a good book of drop-ins if you want to keep your team busy while you write something.
Good luck! Always great to here of new shadowrun groups
