The quick links are a good idea. I have not used them to tie the bikes in the tt, but we do use them when a bike is on the dyno. Nothing like having a tie down come loose on the dyno and the bike rolls forward off the drum
I guess I dont use them in the tt because my tie down straps have a security latch on the hooks.
The Condor style chock would be a good choice as long as the motorcycle was tied down four ways in an X pattern.
I have no experience with the under belly panels, but I'm sure I just read something about that in a recent thread.