The Sandmann has spelled it out very well.  I have nothing to add to the "how to".  I just want to say that it is not really very hard.  Just take it one step at a time and in very short order it will all become very easy for you.  Personally, I will never fly electric.  I love the sound of a 4 stroke engine and the smell of the burning fuel.  Running a 4 stroke isnt really any differant than the engines the guys have told you about.  The are higher torque and run at a lower RPM.  They swing a larger prop.  They just sound alot more realistic.  In a year or 2 I will be moving up to a gas engine.  You only run gassers on the larger a/c.  Once you get over 60 size models you start to consider gas, even tho there are glow engines that are 1.2 in both 2 and 4 stroke.  I put the largest engine that will under the cowl.  I plan on never being underpowered.  
Anyway....good luck and welcome to the club!!!