Just look for jdm importers they are all over the net. shipping is not that bad just shop around. Its best if you find one in AZ that way you can see what you buy and they even do a compression test.

 

one of the easiest places to find built engines is ebay, or you can call around a few local shops and see if they can pin point what your looking for but have more info on how hard its been driven.

tbh if u got 3k, you can get urself a cheap k20 for 900$ or you can get a h22 for about 600-750$. shipping and installing is not included in my prices