How about an E Flight Power 46 outrunner instead. Will provide plenty of clean and quiet electric power. And.......no cutouts for the muffler, carb needle valve, etc, etc, etc.
I'm currently building the Sig Citabria for E- Power and even though it's a builder's kit, I really enjoy building this one. It will be powered by and outrunner motor such as an Axi or Hyperionor maybe an E-Flight Power 46. Give it a try, you might like it.
"It's electric? Oh the horror of it all!"