Sounds like you are describing my Bruce Gordon, Rock and Road Tour. It is steel, cantilever rim brakes on 36 spoke MAVIC rims 50mm tires if you want. Rides very nicely for recreation, and handles 40lb. loads with aplomb. One little snag, Bruce retired, and then he died, so you would have to find a used one. I have seen a few on the classified sections, here, CGOAB, and Adventure Cycling. The prices were great for the value.
Good luck.