It is not safe to drive as is. Dropping the tank is one of the hardest jobs to do, and there is no real way to know exactly which tools you will need. You will run into problems along the way. For sure you will need basic tools like ratchet and socket set, wrenches, hammer, etc. You will more than likely need an impact gun, angle grinder (not safe with gas nearby, but will probably need to grind a few bolts when the tank is out). You will need to somehow empty the tank, and will also need a jack to lower it and raise it. I would replace the whole sending unit with new fuel pump while in there. Also, when the tank is out, cut an access hole under the rear seat. There is a thread on how to around here. It will save you later on. You will also need quick connect fitting removal tools. The harbor freight aluminum ones are some of the best. I'm not certain what could be leaking. I'm guessing either the sending unit/gasket, the filler hose, or maybe the tank is cracked, but I doubt that.
