Grex my man to me there is only one trainer and that the Big "T" I have the plans and I live in Kyneton . Now that only a short drive from Melbourne. The Big T was a Kit but mine is built from plans drawn from the kit parts. I have also put a photo on for you to see the shape. I have mine powered with a Merco 61 I have powered it with a OS 55 AX , and my friend flys his on a OS 46 AX It flys great The instructors love it ,its hard to get them to give you a fly when I was on the buddy box. yours Paul T
The first Photo is with the 55 the second is with the 61