Nice!
im currently doing a 1.8 16v vaux engined mini, didnt have the balls to attempt a cosworth powered one!!
i dont know if you are already a member but you might find this thread / forum interesting.
http://www.16vminiclub.com/forums/sh...ad.php?t=19749
rob at allspeed engineering modified that shell and built the subby for that one, basically a copy of his own 4wd monster.