I have not measured the tank exactly, but by eye and how it sits on the bike it is not any wider than the front of a stock tank. The difference is it doesn't taper like the stock tank.
It has the dent that is visable on the top, one deep dent on each side and a spot on the front left that needed to be pulled out along with just general bodywork issues.....at least it used to have all that going on, nothing a stud gun couldn't fix
I will be making slow progress on the bike, but once I am into it I will take plenty of pics and post progress. I have changed my mind, and the bike, many times thusfar.....but I think the vintage race bike style is going to be the final incarnation of my savage.