Here is a pair of seatpack Butler parachutes (https://www.butlerparachutes.com/pilot-parachutes/). These are the top of the line. We sold the T-34 and do not require them. They are a year old, recently repacked and have less than 15 hours on them since new. To replace them would be over $6,000+ and 6 weeks of wait time. $5000 for both.

You might want to try marketing these to the Warbird crowd too. Guys/girls that fly the Yaks, Nanchangs, T-6s, Mustangs, etc. I would list the operating limitations too....some of those Butlers are rated up to 350lbs or more and 170kts! Not your average Pilot Rig.