Hi again Mike,
Yesterday we took our Gurdy to the local Guitar and Drum shop and asked to see Gig Stands 'for a trial fit'. They were dead intrigued by the Gurdy !
In short order we chose one that seemed the obvious choice, absolutely the business, perfect. Paid our £12 and triumphantly took it home.
Checking just now on here out of curiosity I found it was identical to the one you recommended as shown on the link in your posting above ! (just more expensive, but then no delivery charge in addition either). Terrific value though, (Chinese manufacture) and a brilliant fit.