if your rear dropouts are 135mm, universalcycles has some 700c built wheels with 36-hole shimano xt hubs and mavic a719 rims. 15% holiday discount and free shipping would be $350 approx. Tire wdth range would be 700x28-47mm. Believe they are silver hubs (non disc of any type) and black rims

I've got a set that I run winter or gravel grinding tires on depending on the season. Should easily exceed your durability needs.