Don't forget the gas engines needs a different fuel line!!! There are a couple but you can always find Tygon in most LHS. I use the G-62 and yes, the 12 inch rule of thumb will apply. You want to keep your electronics as far away from the engine as you can. No metal rods going to the engine. It has been said that you don't pick up the RF with 2.4 but we have found that to not always be true. Starting the G-62 is simple with the spring starter. Mag off {you do have a mag kill switch don't you??} Choke until there is gas flowing out of the carb a little, prop turned to the back of the spring, switch on, let go, engine fires!!! Gloved hand is still something you better do, a nice welding glove works very well. If the smaller gassers will start with most any good electric starter, after about 30cc you will need a big starter but they hand start so easy there really isn't any need unless hand starting makes you nervous then you really better get one of the big straters or make one. I had one I made from an old Toyota car starter. One friend set up his bug cordless electric drills as a starter.
In the gas engine forum you will find a lot of good info. All of the basics.
Gene