Military Trailer Dropsides

[rustexpert]

I have a set of dropsides, headboard, and tailgate available.
Dimensions are 4.00m x 2.15m x 0.5m a metric trailer.
They are off a ex Czech army turntable trailer.
I was told this by the person I bought it off; so it may be wrong;
also the trailer is a 1960's copy of a WWII German (Hanomag) design.
However the dropsides, etc are in very good condition and would cost a great deal to make new with all the hinges, fittings and bow sockets. Unfortunately they do look continental; not traditional english.
These should be worth £100 or make an offer (or beg and plead).
Amongst other fittings on the bed of the trailer which may or may not ought be there is a three legged bracket which looks like it would hold down a round cannister or something like and some steel pockets like small wheels would sit in.
If you know what they're for all these bits are no longer required but the trailer is not for sale.
Anybody interested they are in Gloucs but could part transit to south end of Severn Bridge or North Wales ( or anywhere roughly in between ) by arrangement.
P.M. me if you're interested. Thanks for reading this far.