this will be sweet when your done and worth it. i do think your a little out on some of your estimates though. gearbox and tailshaft for 200!!!!!!!!!! where from cause i want one too. a tail shaft alone is about 300 and a manual gearbox good luck. the hardest part to find is a manual bell housing for a 1g.
i was going to do the came conversion with mine but as always i just havent got around to starting adn I'm not sure if i will at all now. i don't know if you've seen the 9 sec blue ke70 wagon on you tube at all well i bought the old setup out of it. the engine mounts, intercooler piping, custom plenum, gearbox mount, o-ringed head, motor etc.
it'll be great when your done but you might need to recalculate your budget though. good luck
