problem is with these cars, is it looks like a small easy job, but you just know as soon as you start to cut the small hole out and by the time you have cut all the rust outso your back to good metal again its almost the complete front floor you have to patch up
but welders are cheap, i bought mine from machine mart at around £170 i think, hasnt et me down yet and me and my mate welded all my sierra up with up and was fine
cost an arm and a leg in wire and gas though as there was so much to do
if you havnt done any welding before then practice, but dont practice on thick metal, you will need to practice on thin steel as you will blow holes in the car panels unless you get the settings just rite
and a decent mask and gloves
have fun wedling upside down aswell