RE: 50-100cc Comparison - Need HELP!
Why not just pose a question and draw upon the enormous bank of experienced R/C pilots on this board? If you are trying use a spreadsheet to choose a suitable power plant, you will no doubt end up with a less than perfect combination for your intended purpose. Have you factored in such things as vibration levels and prop sizes. I would be a expensive mistake to mount a BME 110 to your plane only to find that the 28" prop it requires will not clear the ground.
Not trying to bash you here, but save yourself the aggravation and don't try to re-invent the wheel.