I've done it two ways in the past:

Used a 90 teg compressor, lines, bracket. Worked great but I had to knotch the cross member to get it to fit. Motor used HCP mounts.

Used the stock crx a/c components and a hasport mount worked well, no knotching.

I've always been told that the crx a/c compressor will not bolt to the p54 bracket (different bolt pattern). I've never confirmed this though myself. Let me know how it goes if you already have the bracket.