Got some bad news for you. You would have to use the a/c compressor from the f22 with the h22 bracket. Also, I wouldn't recommend buying just the long block or motors without the distributor. You want everything original and intact. You definetely want the ECU as well as the prelude's transmission. You can find the motor + ECU + tranny online for $2600 or less and (I'm sure someone will correct me if I'm wrong) I belive installation will cost you between $500 and $1000. There's a lot behind this swap that many people don't know here are some links that will help.
http://www.honda-acura.net/forums/sh...ht=engine+swap
http://www.h22a.org/5gswap.htm