Save the 20k, go snag a stripped shell at a junk yard and start bolting on the parts You'll enjoy it much more. I've made my wife help me on some projects and it turns into fun for them too, lol

I was going to pick up a 91 chassis 180 at a junk yard, had no motor/tranny. Was selling for $500, and was going to spend a few more bucks on a SR to slap in it.