[crushers]

if that one does not work out for you i have a good friend that has a rusty but great running BJ40 for sale for $2000 CND.

do a coolant pressure test, these are notorious for coolant leaks where the head cracks between the valves
do a compression test, a 3B can be an expesive engine to rebuild properly
check the frame before and above the rear solid spring mounts espec where it goes close to the muffler
if you need a body check with Mike Gozzard for a fiberglass unit, much nicer than aluminum and won't rust like steel
check for vacumm pump, this is a very expensive fix since you will need to replace botht eh alternator and the pump itself

that is all i can think of right now...
HTH
cheers