Well I'm relieved to say that the owner is delighted with the painting, which is a weight off my mind.
However the damn arm anchorage system I attempted has given up the ghost and drooped like half cooked spaghetti.
The magnets aren't strong enough to combat an off set centre of gravity, even though they managed well enough yesterday.
So back home with it today and working out the plan for the permanent afixment option.
Looks like this may be a double pin, in parallel, plus Araldite fix.
Bit of a bugger, but not the end of the world, recon it'll take a couple of days to "Heath Robinson" this together.
Pass me my Dremel and the 2mm brass rod, please.
:thinking::doh: