RE: First conversion pick a engine 5-choices?
Without doing research looking the numbers up, I believe everything you have is in the 28 to 32cc bracket. The Homelite will probably be the most powerful of the bunch. If my memory of the model numbers is correct, everything you have is relatively easy to convert. I have several conversions flying from 23 to 42cc, and I'm using Gas/Glow in all of them.
Good luck and have fun,
AV8TOR