Search:

try http://www.crxaustralia.com if you want to find the crx seats mate. I've seen many wrecked crx trying to part out everything of their cars including the seats lol

Exedy stage 1 would be good for a street driving

consider something like this http://www.hondatuningmagazine.com/features/htup_0903_1991_honda_crx_jdm/photo_25.html ? I think it would look ok and help feeding the air for your short ram or itb though

you gotta reweld the hanger to fit.
relocate (cut-twist-reweld) o2 bung from the test pipe if your not installing a cat.
then your ready to go..
With CEL,,,.if you happen to get it.. anti fouler...