Highway - sorry to hear about your rotator surgeries, my step father had his rebuilt after trying to stop a rollaway trailer tire . His never healed properly either, and had very limited movement in it.
Far as your build goes , the trailer exceeds the " new / rebuilder " rule , so that's not eligible. The tractor as you stated would be a complete new kit , and that would certainly qualify. I struggled with just allowing any build at any stage prior to starting the event. Finally decided to limit the starting points to those listed. Hope to see ya participate !