I used the E30 Gruppe N rubber subframe bushings (straight from BMW) ... lots less void area than the stock stuff, but not urethane or metal either. You have to cut them down to match the height of the Z3 ones thoughs. And I'm using Delrin trailing arm bushings (TCK got them for me, but they are from Korman).

I'm using the H&R adjustable front sway and no rear sway.

I used the Dinan adjusters for the rear. They are basically like the Ireland ones, but much beefier (and correspondingly more expensive.)

I think the suspension is pretty close, just tweaks to be done. I think I can get where I need to be with ride height and shock adjustments, at least, it'll be pretty darned close. As it was last weekend, it felt pretty good, just a bit too much understeer mid-corner under power.

As far as a hardtop goes ... I see those on BimmerForums from time to time. Here's a recent ad for one up here in SF: http://forums.bimmerforums.com/forum...d.php?t=742826