336 autopilot stc for stec30

[walt]

I have given uo trying to find a form337 for my 336 to install a autopilot. I am cotracting to get a stc for a s-tec30 and possibly a s-tec55. My cost is $5000.00. Is anyone interested in purchasing a STC for your 336? I think $500.00 per. I have offered to purchase the form337 from Sky master center from the 336 they have advertised, but no luck. They probably dont have one.