I understand about the gas. We have a guy in our club with the same issue. He uses Coleman fuel ( white gas) it doesn't have the benzine and other chemicals,you might want to look into that.
As far a glow goes, put biggest one that will fit in the cowl.I have 4 TF-51 arf's. As you learn to fly them, you will want more speed. You don't have to use all the power, you can throttle back. But when you want it it's there!