if you've not started yet, maybe look at these http://kitplanesforafrica.co.za/Pages/Models.asp
Starting to get a few here in europe, but I'm not sure about USA. The kits are available modular and the exchange rate is probably in your favor at the moment.
Good luck with your back operation, only those that have been there really understand the pain. L5-S1 Disc Rupture, 9 years and still walking.