I am installing my composite hydronic flooring panels on my 350HD and am using 10 x (12v 200Ah) VICTRON batteries to weigh it down. I thought it was funny. I'm doing the work at Just Roaming Design in Washougal, Washington and they are a Victron rep. so they had a bunch lying around and they are perfect to spread some dense weight around. How much you think they are all worth?