So creepy thing... There's a big draft cross who is paint coloured and named Comanche in my area.... Not the same horse/area though!!
I think he would be a great horse for a bigger dressage rider. Depending on hiss talent and work ethic end up being, I can see him getting up to 3rd level. Short back, long legs, sloped shoulder, good hind and an uphill build. It's just going to require a lot of leg and half halt.
He looks like a big, kind guy. If you do get him, go buy an industrial sized vat of whitening shampoo though :P