Ive been driving 944 turbos for years but now ive decided to start looking for an fd rx7 to heavily mod. Ultimately i want to find a black, white, of blue fd with no sunroof and convert it to a big single turbo. Right now im trying to sell or trade my car for an rx7. Once i start looking how common is it to get sunroof delete rx7s? Also did any come with manual windows? Whats the average weight you can get one down to?