Jack, the towing eyes are stock items (Moss #400-575); you can find them if you look real close (they're very small) in the Moss catalog on the "Bumpers" page. There are two, one on each forward frame member. I have a heavy SS/w vinyl coated yoke with three heavy duty snap links in it, one for each towing eye and the other floating on the yoke for the winch lead hook. The winch is electric and I don't trust it to hold the front of the car when on the road (it's also not good for the winch) so I hook a heavy rachet type tie down through the driver's side tow hook, the other end to a floor tie ring, and tighten it to release the pressure off the winch cable.
In the rear I use two ratchet type tie downs, each hooked over the rear spring at the shackle with the other end attached to a trailer tie ring on the OPPOSITE SIDE of the trailer from the spring. That is, the rear tie downs form an "X"...no movement!
I had the trailer built with (6) 5000lb tie rings, one in each corner and two midway (those I've never used).
I've done a LOT of towing, including last summer through the Smokies to MG2006 and never had the car move. Total time from when I unlock the trailer's rear door until I drive off is <5 minutes. I do NOT drive the car into the trailer. Some day I'm going to be an old man...so I made it easy!
Ray