check detata, and any billet company should be able to hook u up with a set, such as B.A.D, Boyd, Intro, ect
lots of 22's made six lug, but almost nothing will tuck on a mazda. You need a high positive offset, like +60 on a 8.5 inch wide wheel. So custom made billets are your only option, unless you narrow the front and rear track width. The rear isnt so bad, get an 81-84 courier rear end, but if you narrow the front by shortening the control arms, you will have trouble getting enough lift to turn/drive.