You will need stainless welding rod, preferably 3/32" for the gauge of metal you are working with. Most of my SS stick welding was with Red Baron 3/32" 316L welding rod, it's not perfect but adequate. A starting amperage of 50-70 amps should work, turn up amperage until weld flattens out. Watch out for the glass like flux popping off after you lift your hood to look, put the wire brush or file over the flux to save a painful lesson when it pops off. After making a pass and knocking the flux off let it cool a minute then brush the weld area shiny again while still hot, do not let it cool too much or it will be sandpaper time. Be prepared to file and grind the spatter from welding, the spatter will get a better grip than you expect when it hits. Last thing is stainless grows and shrinks a lot more than carbon steel so plan on moving around when welding, 1- 2" pass on one side, then jump to opposite side and make same size pass, then let joint cool before hitting other sides.