FCAW 18 guage steel

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New to the forum, and I apologize if this question can be found in multiple places and has been answered a million times.  I want to weld 18 gauge steel floor panels in my buddies jeep.  I have to options for machines to use.1= a small automotive stick welder with the 35-100amp setting which I own. This I have used before and have had some good experience with.  Although it does cut out on me when I run it on my larger welder/generator.2= a 35-88 amp FCAW Lincoln Weld Pack HD.  The machine is a significant discount purchase that I am considering making(real cheap!!).  I just want to make sure it can do the job I ask of it. It uses .35 wire. Any recommendations, advice, and general help would be greatly appreciated.
Reply:for this type of work i use a 100 mig running innershield wire.i.u.o.e. # 15queens, ny and sunny fla
Reply:sorry, 110 mig. same wire.i.u.o.e. # 15queens, ny and sunny fla
Reply:What diameter innersheild wire?  How does that set up work on 18 guage for you?
Reply:It runs HOT, .030 wire. Dial at "1", feed at "1", stitch an inch and stop before it burns through. I move around a lot welding in floor panels just to keep it from warping like a cookie sheet in the oven, but recently did Jeep floor pans in my J-10 and have promised to do the same soon in a buddies SJ Cherokee. Gimme a few and I'll toss up crappy cell phone pics.EDITED TO ADD:The cancerThe rustectomyThe 304 donorLast edited by REDONE; 01-17-2013 at 11:35 PM.
Reply:The skin graftThe final fitTacked upYou can see how I move around to keep the heat under control. If at all possible lap weld it, as fitting for a butt weld can screw you pretty quick. It ain't worth the time to scab in a 1/16" gap using FCAW on sheetmetal upside down with your head up your butt to fit in the footwell with a hood on.Also, before you start, be aware of the fuel lines. I'm sure you already figured that, but for anyone who finds this thread in a search, be mindful of the hidden combustables.