No go. Who is going to shoot a 35x at 3.5 power. I’d rather have a 5-6x erector 4-20, 4-24, 5-25, 5-30, 6-36 etc with great glass, great field of view, nice DOF.
It Doesn’t have to be 12 inches long, but 13.5-14.5 long would be nice.
Fit The best you can engineer in this size with a 34-36 tube...