I have the opportunity to buy a 2006 Sundance Maxxus hot tub with cover for about $3,000. It appears to be in good shape with all the original paperwork. Is that a good deal? I have heard Sundance is a good brand but I am also looking at buy a new tub. Any recommendations with a body lounger and foot massage well around $6500 or less? Is a new Viking Heritage good? Please help. Thanks!