here is another option the cradles are removable and a pair of "L" shaped cradles works well for combat planes or profile setups. a combat plane would sit on this 90 degrees dif than the trainer ... or facing forward in the walker. one night project less than $20.00
you will of course have to endure a few "old fart" jokes.[:@] there is at least 10 of these at our field now they are a little like a spad as you can change em around easily. use schedule 40 1" pvc and it will be plenty strong.