Well in realitive terms to the factory bracket it is probably a few oz less and much less than the ground pounder mount. The Moon/Wyvern and the Ground Pounder are slick and the Miller is simple and cheap. What the Miller offers is cheap and loads of clearance. There are three choices at the moment. The Miller, the M/W and the factory all offer something different. Not sure what the factory offers but the others do offer different things.
That's crappy to hear about the expenses. Do you have insurance????