The "best" period correct trailer is a Sankey, but the problem with them is that they have the NATO hitch and are set to the hieght of the mil chassis (ie 2" lift). They are seriously well made and despite costing a good £400 or so for a reasonble one are well worth the money as they will last forever. Mine is 1966 (they are all plated which is handy if you plan to tow on the continent) and it tows really well. Same wheel studs as Series so you can share a spare wheel. They are plated as 3/4 ton but that is cross country, they easily carry a std 1m3 bulk water tank which is rougthly a ton. They come in "narrow" and "wide", thee are lots of small differnces but the main one is the narrow doesn't have a tail gate - unless you make one as I did. Without a tail gate they are very high for loading.
Here's a typical example:
https://www.ebay.co.uk/itm/sankey-t...h=item1cc78fce61:g:EnIAAOSwFZZcRxwH:rk:4:pf:0
Here's a typical example:
https://www.ebay.co.uk/itm/sankey-t...h=item1cc78fce61:g:EnIAAOSwFZZcRxwH:rk:4:pf:0