floor pans

I'm all about learning new skills...I was just speaking on experience not being negative..I tried a HF welder & took it back...it really isn't that much to buy a better one online from someone like weldingmart and you will find the learning curve much easier...Also since the floors are considered structural in the unibody, I would practice on some waste metal before experimenting on new floor pans..
I was also lucky enough to have an experienced welder pop in on me and gave me simple invaluable advise that made a huge difference in the learning curve. One trick is to use a piece of brass under the weld seam when you can get at it to help where you need to fill..and I agree the auto darkening helmet and safety glasses are a must..