If you use parts from the wreckers - it can be done for under $200 (based on local prices). If the 350 that you want to swap in is stock and you leave it that way then their is no programming to be done.
The single hardest part is running the return fuel line, if you have access to a lift then 5/16" hard line is the cheapest way to go. If not you can still use hard line but its a pain to get in on the floor. I've done 2 swaps like this and now just pay for high pressure flex line. Single braid hyd. hose if its rated for 150 psi min. is fine.
A 88-92 full size van is a good donor for the TBI system.
