Engine Swap Forum

I have an 1987 B2000 truck, which had a 2.0 engine. Im having a problem in my area finding a good used engine without paying an arm and a leg, and or buying a complete truck that i don't need. So to get to my question and inquiry...What or which mazda engine swaps can i use that will bolt in and and match the best. Im looking maybe into the b2200, or b2600 series. and i would like to stay with the carb version. what years will work?

UPDATE:
Well, I finally did end up with a used 2.0 mazda engine I bought from a salvage yard. But now almost a 1 1/2 year later, I'm back to where I started. Blew a head gasket and warped the head. Soooo, Im thinking about swapping a 1995 S-10 4.3L engine into the b2000. I am some what mechanicaly inclined, and know lefty loosy and righty tighty...If anyone has done one of these swaps before, It would be greatly appreciated you can give me some pointers. Thx