HF has a metal box made for trailers that is tapered and fits the toungue perfectly.
On tying down, you could also run rachet straps thru the 4 wheels instead of to the axles. FWIW
Paul in CT

Thanks, I noticed it on one of my times at HF. Now the problem is to get the wife in there sometime to admire it also so that it may be a doable thing to purchase. Maybe I can take her to a flower shop first to see what items she may get there so as to soften her up a bit.
29ModelA: Most high end car manuf suggest to run straps THRU the wheels if not using the wheel basket tie downs. FWIW
Paul in CT
And if you tighten the straps thru the wheels without OVER tightening there shoukd be no problems.
3. Forker, you have a problem.
As far as the rear of the trailer is concerned, the D rings should be way at the far corners of the trailer. I cannot tell about the front. With your present setup, if you hit even a moderate bump, the car can hop left and right and because there is little clearance between the car and the trailer on the sides you are in for trouble. I have seen this happen. You can either move the D-rings or cross the straps.
I've been of the understanding that you do not tie the front axle of a Model T. Are '28 to '48 Fords alright with tying the front axles provided the wishbone ball and socket are in good condition?