4000 can?? thats cheap. be sure that it's a quality engine if its that cheap. i'd check the mileage, and see if you can find customers that already bought from this source, and see if they're satisfied.

as for swapping a type r engine into his crx, it would be simliar to any other "b" engine into a 88 crx. is it an si, dx, hf??? btw, there is a thread near the top called "post engine swap questions". i'm sure most, if not all, of the info is covered in there. also, try using the search button to get a general idea of what needs to be done, and if there is any specific question that you have, we can answer it