JDSanders, no, no, NO! In my opinion, you do not need your first glow engine to be mounted inverted. But first, let me thank Jan Karlsson, and a few others, for inserting some sanity into this thread.

If you are new to glow and/or new to flying, please do not shoot yourself in the foot by making an unwise choice.
Tuning a glow engine correctly and precisely takes experience and time to develop a feel for how to run it and an "ear" for the sound. If your idle is not correct with an inverted engine, it will make your takeoffs and landings probably. When you add power for take off, your engine may sputter and quit. When you land, your engine may quit at idle so you only get one touchdown instead of a dozen.

When you are learning, you want to minimize every possible problem so you can fly and learn. Why come down final approach and have to worry if the engine is going to quit? Set yourself up for success. Get a trainer and fly the heck out of it. Then graduate to a Stick or a low wing sport plane like a 4-Star or something similar. I prefer the Stick, myself, but either is fine.

Finally, you can pull out your plane with the inverted engine and go for it.