Recently I read that one of you out there installed Race Tech valves and springs (successfully) and had never attempted to do such a thing before. Having read that I decided to do mine myself as well. The parts are on the way and I would like to know if I need any special tools or will I need to replace any seals after disassembly so that I can get those before I begin the work. Do I need a nitrogen tank for the shock? If I don't know the answers to these questions should I even attempt this?