Go to your local big box lumber yard and grab 6 bags of construction sand. 50lbs each and only $5 a bag. The 300lbs makes a huge difference in snow....even with my crappy stock tires. I call it my hillbilly leveling kit.
Hmmm odd. Check out trailbuiltoffroad.com I believe they posted the weights of the wheels. It made me difficult for a manufacturer to measure and weigh every single wheel size and offset to post the weights for each. However I don't think you can go wrong with the Rhino Wheels.
Nice choice. If you get them definitely post some photographs. Bothe the Voll and Awol are made with a spincast technique. According to Rhino, ends up with a stronger lighter wheel. The Awol is 30 ish and I've seen that Voll number. I've not heard of a truck or off-road wheel that's around...