For those of us who are a bit vertically-challenged, can anyone recommend any mods that will raise the current factory seats higher than the current limits allow, or suggest an aftermarket (of different generation Porsche) seat that will "fit" relatively easily?

 

Tricone, check out Brey-Krause, they have all sorts of seat brackets, and try to find out which one could work out, it might need some creativity. Also try Sparco and the likes.