list looks good.
I got a 12"x24"x4"(core size) intercooler from ebay (SS autochrome)
with 3" inlets. Its a very good bar and plate design and is pressure tested. great price and quality.
plus, it fits nicely in the e30 front end
dont forget a good electric fan. ditch your mechanical fan!!
im using a two stage dual 10" pusher fans.
keep us posted