floor pans

welding shops rent welders too. you could get the old pans all cut out and the new pans in place and go rent a good welder. for a first timer i would rent a millermatic 211 auto set. you just turn the "heat" dial to what thickness of metal your welding. floor pans are 18ga. i think. then you just pull the trigger and its welding. get on youtube and watch some videos. you will not learn to weld just doing that but it does give you some ideas. the local welding shop might even spend some time and give you some pointers.