Why complicate things?
I put a pair of scissor jacks on the front where none existed and my 27 foot TT is solid as can be.
No give, no sway, no bounce, no rocking, no movement at all.
I don't do anything with the wheels or the frame nearby. Don't need to.
Heck,I am set up right now on a fairly level concrete surface and my TT is not flexing in any way. No bounce from the frame flexing. It doesn't flex when supported on 4 corners. My TT is rock solid with a scissor jack on each corner.
I put my front jacks 2 feet back from the front of my T frame. grabbed the number out of the air. Ahhhhh - ?? 2 feet that oughta be fine, and it is.
End of movement problem. It moved a lot when I had only rear jacks. After I put the front jacks on a few days ago, all that changed.
Simple solution, a used pair of jacks off Craigslist.