You have requested an answer that will take at least three pages of single spaced typing to cover. A reply for just one is yes, the stock factory steering column can be used with the chassis of your choosing as it just takes the correct U-joints and double D shafts to connect old to new. We have used a later model Tahoe chassis which turned out nice. Stay away from an S10 as they are way too narrow for most except the AD and even narrow for them. A major undertaking for ones with previous experience but not impossible. Definitely requires more than hand tools.

Evan