Sounds good, but you've described a lot of work and made a lot of assumptions...
The original 235 in the '62 is either front mounted or side mounted, I've no idea which, but those mounts should be completely independant of the leaf spring front suspension. Working on the truck may be easier with the motor out, but I don't believe your proposed suspension changes will directly affect the motor mounts.
The IFS swap you've read about has been tried on a number of different vehicles. Currently I'm trying to locate even one person who has both done the work and is driving the truck. My thread elsewhere has revealed some that have done it, but not one who has both completed the work and IS driving the truck.
I'm increasingly convinced this swap is not as easy as it looks. My bet is the challenge is mounting the crossmember , steering box and idler arm correctly and in correct relationship to each other and the ground. I may still try it myself, but the more I research the less optimistic I am.
The last G20 van I pulled apart was all five-lug stuff. Is that the case with the one you are working with? '86-'87 is early enough I'm wondering if it really does have EFI. I'm not sure, but I'd check to make sure there isn't a carburator lurking under the doghouse.
Carbed or not, it should still be a good swap in the S-10. Around here most the S-10's that are talked about are going under a '47 to '54, where the motor needs to be mounted further back than makes sense with an S-10 body in place.
And I'd say you need a good welder to go with that sawzall. Its easier to cut things apart than to put them back together in a safe and useful way.
