I would recommend a DA 50 as a first gasser.

If you like the Sukhoi, you may consider a Yak as there are many more yaks available. My favorite 50 cc yaks are the SD models, The QQ, and aero-works QB.

I have never flown any gas airplanes made by either Hangar 9 or Great planes, but have heard no complaints from those who have.

Get some experienced help, even a little 50cc engine could seriously hurt you. Most people use amsoil at 100:1 in DA engines, but there are MANY who prefer other oil mixtures and ratios.

In a plane as small as 50 cc, you don't need redundancy. Some people add it as a precaution. Failsafes are rarely effective, but should be programmed anyway.

Any DA engine is one of the lightest, most reliable and 'idiot-proof' engines available. All of my gassers are DA powered.

Since I began in gas, I have not touched a glow plane except to sell or move it.