round #2 with gas tank

well I found a tank on rock auto for 179 shipped and a sending unit for $40. I called summit and have them price match and the stuff is on its way. I will try and refurbish the filler neck the best I can. I was wondering if it needs that little tongue that sticks out the end of it? It's so corroded I'd just like to cut it out and maybe even the tip of that thing off?