This is something for any Kiwis following the comm, and I think they may be based in Aussie as well, maybe? Anyway, they mailorder.
Crumpets may not be well known in America being more of a British thing, but they're one of my absolute fave winter treats. When I was a kid there was a nearby bakery that made (non GF of course) excellently thick, chewy/crisp crumpets - the square-shaped ones, but in recent years all the supermarkets seem to sell is lighter-weight, less stodgy (and to me, less satisfying) (and of course, still non-GF) ones, mostly circular, but sometimes square. Smaller than the crumpets of old, though.
Then I was randomnly searching the internets for GF crumpets, like you do, and I discovered this LOCAL Christchurch company that makes GF crumpets. https://liberate-foods-nz.myshopify.com/
I've had a couple of deliveries so far, and they're the stodgy, delicious, square crumpets of my childhood, in spades!
Preferences for what to have on crumpets vary, but for me it has to be butter and honey, every time. YUM. Highly recommended!
The only problem is how fast I eat them once a parcel arrives. And one time the idiot courier guy left them at my neighbour's, which was briefly worrying, but the yumminess was eventually retrieved.
Seriously, if you can access these, give them a try. With butter and honey, of course! You toast them (I don't have a toaster but I brown them a little on both sides in a dry non-stick pan).
( pic here... )