Our outside vice just has a plastic tub over it ( its like the bottom of a 25L drum) held on with a Bungee cord, it gets the occasional oiling but its been fine
You should be able to do a HPI or Car vertical check from the VIn to check the history etc. remember a V5 ( log book) only shows the registered keeper for fines etc not the legal owner
Nice. I am sure one of the stationary engine groups would tell you or HMVF as I suspect its military for running a radio or charging batteries.
https://hmvf.co.uk/