A CRX Hf is probably gonna be hard to find, but i would guess like $1000-$2000
If you wanna see about puttin on JDM parts I would check out passwordjdm.com

They didn't have Type-R CRX's but they had Si-R's
You can get the front end conversion for about $1500
Then you can get other little JDM stuff from there if that's the route your going

The engine that came in those was the B16 with you can get anywhere from 800-1500 for the OBD-0 swap
Integra Type-R cam with the b18c5 and the Civic Type-R came with the b16b

Hope this helps a little