On Monday, September 12, 2016 at 10:04:37 AM UTC-4, wrote:
You should consider the LS4/6/8.
Large pilots usually completely remove the adjustable seat back. The rear cockpit bulkhead is flat and sloped just like a seatback. The LS series is designed to fly with a parachute.

In the lower price range, the Standard Jantar usually has PU paint and has a very lengthy cockpit - second biggest cockpit (after the Genesis) I've seen. Long arms would be a bonus - instrument pod is well forward. Usually one on Wings and Wheels.

The HpH304 Shark is also very big, but way out of your stated price range.

Ka6 - I'm 5'10" and found the Ka-6e to be snug for my height - had a 1/3 share for a year. 1-26's were bigger inside (though not particularly comfortable after an hour or two).