RE: 2 or 4 stroke engine in a trainer ?
Never fall in love with your first airplane, how it looks or how it sounds. It has a very important mission to perform and that is to initiate your edcucation. Folks often become so engroused in how it looks or sounds that the important factors like good preparation CG and control setups for example are neglected to the point the airplane can no longer perform its important mission.
Do yourself a favor and use the two stroke for the reasons mentioned above and save the FS for a nice airplane down the line.
John