You guys should email Desser to tell them to produce a 35'' or + tire. I do, once every 3 month...
But about the 10'' wheels? Where could someone find a cheap aircraft 10'' wheels with conical bearing??
If I didn't already my 35'', I would look to build an adapter to fit some atv aluminum wheels. Would be relatively easy, but time consuming, on my lathe.
Like those:

Goldspeed ATV Beadlock
Goldspeed Racing Products has just introduced a new aluminum beadlock for MX, off-road, XC and desert applications. The new wheel is unique in that it’s a super-tough, heat-treated, .190-thick aluminum construction wheel mated with a lightweight, ultra-durable carbon beadlock ring. Goldspeed has also one-upped the standard by offering both front and rear wheels with a universal bolt pattern, allowing for one set of wheels to fit all current sport quad models. GPS currently offers the Goldspeed beadlocks in a box set that will include mud plugs and a set of lightweight, heat-treated, 7075 aluminum lug nuts at no additional charge. Available in 8×8, 9×8, 10×5 or 10×5.5 sizes.