I would make a move on securing that trailer they do not become available that often, there are one or two in the UK that have been preserved i will try to find the photos i have taken in the past. They do look good when towed behind the right piece of kit.
Whilst the interest is still with the 7.5 trailer here are acouple more shots, the first another view of the same from the front and a rear view showing the drop down stabilizer legs,useful shot for restore. The crank handle is the winch no electric buttons here my boy
Les