holy crap thats a great price! I paid 1700 for my 90 hatch with no engine swap. (thats dealer price though, it was sold to them for 1200)
I've been considering a zc swap for my car, because Its such a good replacement engine for stock. It makes about 120-130 hp. As for support I'm not sure, thats why I'm consdering b series. Its JDM motor, and I'm pretty sure that some older integras came with it. dont quote me though.
some links for zc stuff:
http://www.gamesbbs.com/~dmoore/zc.htm
turbo zc page