parts interchange from 88 Jimmy to pickup

[kanuck]

I have an 88 Jimmy I am going to part out to help me for my 83 short box build. The Jimmy was a Sierra Classic with a 350/700R4 with 84,000 miles. Runs great and drives OK. Interior wasn't bad till I left it over the winter and mold got at it.

What I want to know is what parts to keep to help me out for my 83 short box build.

--I have taken out the bucket seats and console but suspect I would have to make custom brackets to mount them?

--Does the front bumper mount from Jimmy to PU or do I have to change brackets? How about the back bumper?

--The windshields I am pretty sure are the same. Yes?

--Doors are the same? Yes?

--How about 6 lug wheels? Will they fit fine on my 1970 6 lug 2wheel drive?

Thanks for any help you can give me.