I just bought a 2001 Supra Launch 21 ft. direct drive. it has the tower, one rack (the other was broken), bimini, factory ballast, adjustable wake plate (not hydraulic). What should I be looking to do to improve the boat. I've got the sounds covered...Kicker HLCDs, Memphis 12" sub, pioneer interior speakers. I'm going to get new racks and a mirror, but don't know what to look for as far as quality goes. Dont want to drop a lot of cash on them. Just good looking and strong products. I also want to add some weight. How much weight and where should I add it? Anything else I might need? Thanks.