My grandfather was a diminutive man, our gunsmith lengthened the stock and raised the comb on his old Browning "humpback" shotgun for my 6'6" husband. Did a splendid job matching the wood. (it still kicks like a mule though, he couldn't do anything about that. ;-) )
Talk to your gunsmith about one of those mercury filled recoil surpressors. It fits in the stock. If you don't mind the extra weight, and it doesn't upset the balance, you'll be amazed at what it does to the recoil.
Mark