Mounted it on the wall. Also removed the old rawl plugs from the taps as they were pulling out and replaced them with new ones and new screws such that the tag is no longer floating against the wall.
So far it’s only one that is made and fitted, but I have bent up a second hoop and removed the two ex-roll cage holding bolts that will secure the loop. Yes, it is made from the remaining copper bar that I used for garden hose bracket. No, it isn’t really the best material for this purpose – but it was free and easy enough to bend with tools without applying heat. There are four potential locations for hold down loops like this, one in each corner of the rear tub, where the roll cage used to mount, so I’ll put these two on diametrically opposed corners. Then at some later date perhaps I’ll happen across some other bar stock of the right size and made two more. A bit of 3 x 25 mm stainless would be perfect.