I had the stock fuel tank (470cc or 16.54oz) that was good for about 5 minutes of flight time at full throttle with my Saito 180, should be good if not too much for a gasser. I have three Hitec 605 servos in the tail for the elevators and rudder, two hitec 475 in the wings for the alerons and one hitec 303 for the throttle mounted on the firewall for the throttle. I am using a 6 volt RX battery with an MPI failsafe switch.

Don't be too shocked when you see that transparent white covering they put on that model. Thats why I recovered mine.