Specialized concept in Harrogate have a XL 29er camber (carbon expert) on demo. I’d guess they will ship to any of their concept stores.
Incidently, I’ve been riding a 29er HT ( GF paragon) for 3 years and just invested in a 26 trail bike. I demoed the 29 Camber but, although it is a really good bike, it wasn’t different enough from my 29 HT to warrant the purchase. I will post thoughts when I’ve been out on my new bikes a few more times over a variety of terain.
I am keeping both 29 er Ht and full suss 26, but focus 29 for XC as opposed to the multitool I used it for before, eg trail centres, all day XC, tour de mount blanc, coast to coast road trips etc.
BTW I’m 6 ‘3″