YS will run OK without nitromethane. I test ran an FZ-63 not long ago without it and it ran nice. I didn't try to compare to 20% nitro, but there was plenty of power for me.

Glow and ethanol may not work. I could not get my OS FS-52 to run on E85 (85% ethanol and 15% gasoline) and an OS F plug. I normally run this engine with spark ignition, but had a glow plug handy one day. I've heard the Enya #3 might be better.

I think the YS fuel system will be OK. You will have to adjust the regulator though.