gt3 console delete:
https://www.pelicanparts.com/techarticles/Porsche-996-997-Carrera/75-BODY-GT3_Center_Console_Delete/75-BODY-GT3_Center_Console_Delete.htm
steering wheel extension:
http://986forum.com/forums/boxster-cayman-parts-sale-wanted/66473-steering-wheel-spacer-oem-steering-wheel-airbag.html
cheaper seats closer to you (perhaps they can make custom thinner cushions):
https://bimarco.eu/en/
aftermarket steering wheels need specific hubs to work, and sometimes horn and turn signal operation becomes an issue. will also trigger airbag light. momo has history of working with porsche and make hubs for our cars (and steering wheels, or look for an aftermarket wheel with a momo bolt pattern).