Thanks Austin, looks like I'm gonna need some luck
I placed an order two weeks ago with Recaro dealer PAR Porsche that also sells through eBay. So far, they haven't confirmed my order or answered any emails!
Willie: please note the measurements for Recaro seats that you've posted are not the overall dimensions but rather are for the "inside" seating space. Recaro has done a very poor job of providing complete info on their seat sizes and weights.
Giancarlo: remember if you're looking at the SRD that there are two versions...one with a bottom cutout for an anti-sub belt and another without. You might want to get the one with a cutout at $50 more to maximize the uses for the seat.