Bears: The two campers I have had different tie-down methods. I accepted both as is for the ride home. The first, the 10.5' had a hole drilled through the under mount metal frame rail with a screw type chain link connected to accept a turn-buckle hook. That left the pipe holes vacant for receiving the Safe-T-Jacks. The second one had corner mount hydraulic jacks and so the previous owner had put a male pipe into the female pipe holes for the Safe-T-Jacks and had eye-bolts attached to the male pipes for the tie-down system. I didn't like it, especially at the rear as the rear tie-down angle was too far forward on the 8' model.
I liked the hole in the frame-work method better but it does put the tie-down further inboard than what I think may be optimal. I'll evaluate my choice as I go.
Haven't looked closely at the hydraulic jacks. Their the same as my Dad had on his 72 Camper (non-Travel Queen) years ago. I don't like them any better than the manual cranks. I will probably go with electric jacks swiveling in the pipe holes.
Your 110 model is quite interesting (referring to the floor-plan picture). Mine is a 1968 so the changed from the 1966 brochure. I have a 102 on the curbside and a 108 on the street.
Let me know what parts you need and we'll see how that goes. I like to somehow get a Travel Queen Classifieds set up for units and parts. But alas, spring yard work awaits. ;)