Believe it or not, I'm actually working on one now - my second Jeep book. This isn't a week-end thing - I'm really working on making this thing as compleat as possible, and I'm expecting it to take the best part of a year or so (I'm really digging into this one - and you wouldn't believe the number of parts catalogues I have - aftermarket and OEMR...)
As far as your question goes, I'm confident in saying that flexplates (that's what they're called when they're in front of automatics - flywheels have clutches bolted to them...) from 1991-1995 will work, and the 1996-up *probably* will work - but I haven't verified that yet. The OBD-I and OBD-II CPS sensors are the same part - but I haven't checked the flexplates (the cranks swap handily, and the torque converters are also the same, as I recall.)
As for the steering column, from 1991-2001, they're ChryCo, not GM. The GM columns are in the AMC-era XJ's from 1984-1990. When ChryCo fully took over production, they put in their own electronics and started using their own parts for the interior. I'd be willing to bet that your key looks more like a Chrysler key than a GM... You've got one key that operates everything, right?
GM never had anything to do with Jeep production as a whole - which is why Delco isn't any help, and I'm writing this book.
If you'd like to suggest anything to be included in "Introduction to Swappology" (or my other book, if you get a copy,) stop by my
Jeep Power group to ask questions or make suggestions - I'm always willing to listen!
Anything else I can help with?
5-90