Sounds like a great project mate, but I'm not sure about the 550kg/200HP part! I think the lightest CRX I've seen was about 750-800kg, and the best B20VTEC I've seen made about 135kw. But don't be fooled, those are great numbers. At 550/200 it would be crazy to drive!

There is a cheap CRX for sale here on the forum, I think about $1200 or so, with a running engine etc, otherwise you might need to check out ebay as these things rarely show up in the wrecker yard.