Ok lets see.....Type R swaps go for about $4500 conservatively...GSR swaps can be had for $3000. You put that extra $1500 into the GSR, and I guarantee you that you will beat the stock Type R. Or you can build a $3000-$3500 b20vtec, spend $1000 on an LSD tranny, and spank the crap out of a type r swap.
As for the b18c in a CRX, it will fit, but it hangs very low.
__________________
2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget