Brian,
I have a 40% Sukhoi that I have been tweaking for about 4 months for 3D practice. This one is has a realistic weight of 32lbs and uses a Brison 6.4 Twin for power.
If you will PM me on here with an email address, I will zip up the files and get them to you. I would like to get your feedback on the plane and see if you think it will help you

.
Just let me know.
CJ