Polor Bus - a little Windex will clean that plane up. In the event of a crah, the servo lead will pull out of the receiver. The opening for the engine opening is correct, no covers needed. The airplane is designed to fly that way. The engine will fill the space. You might want to by a spinner to help out with a electric starter. Another thing about crashing - must instructors use a buddy box that attaches a "master" transmitter to your transmitter, the "slave". Crashes are much fewer using that system , as opposed to when I started flying and had the "throw the radio" trick to the instructor when the student got into trouble. Liek a couple of us have said, tak ethe plane to your local field and just ask for help - if its like most club, people will come out of the woodwork to give you advise!!!