You have a relatively good climate there. Not too hot in the summer and a small space heater in the winter will keep you going. If that is a 2-car garage it is even sweeter. At any rate you probably already have power there so now you need to build a work bench or two. There are several threads on that if you do a search. It would be nice if you could sit at it to work and if you could get all of the way around it although the latter is not imperative. You need GREAT lighting to protect your eyes from the strain of working on small things and arrange it to avoid shadow areas. Have enough power outlets to cover tooling you will use in the assy area, either in the wall or drop cords. Place larger tools (drill presses, table saws, grinders, etc) away from the clean (assy) area. Put an exhaust fan in the wall to suck out balsa dust and paint/glue fumes as many of those can be toxic. Must also have fresh air. Keep a shop vac handy to keep the place clean, you'll make a mess in a hurry. A cabinet or shelving system to store things on/in. Wings on wall racks on opposite side of garage from work area and suspend fuselages from the ceiling if you have the headroom, otherwise find a way to hang on wall also. Wall hooks nearby to hang transmitters on and to keep them charged maybe a power strip of some sort. Do not overload your circuit breakers/fuses.