I need in too!
I have a Byron T-bolt and the Top Flight 60 size kit T-bolt. The Byron still flies with its PurrPowr Sachs 4.2 and Byron 4-blade prop, and we are still using the Byron retracts. It is not a rocket by any stretch of the imagination, but it flies well overall. The TF 60 size is motivated with an old Tower 75 and with Robarts and flaps it has been an a great trainer for stepping up to the bigger warbirds. A few planes down on my building list is to do a TF giant Jug, it will be a few more seasons till that gets built though.