I have a new to me Vulcan VN1600, big ol' cruiser, first one I have ever owned. I like the character of the bike but some things could be improved. Like, fuel capacity, as I have been spoiled with six to seven gallon tanks on my BMW twins for years. The Vulcan, with all the usual exterior mods applied, it gets 38 to 41 mpg, which means the low fuel light comes on at about 175 miles, just bugs me. I'd prefer a range of about 225 miles before the low fuel light glows. So,....make a Vulcan fuel tank bigger? Not easily done by adding a metal "wedge" into the tank to increase the volume because the tank is compound curves all over the fuel tank. But, I can get a pair of stock VN1600 tanks really cheap. Cheap enough that I'm thinking of cutting each one in half horizontally, but with a 2" overlap in the cut area so the bottom of one tank with the top of the other results in a taller/bigger tank. Should give me at least one gallon more capacity, perhaps close to two gallons more capacity. I know some excellent craftsmen that can do great metal works and produce flawless welds. But, am I way out of the ballpark with this thought? The bike is massive enough that a taller fuel tank would not look out of place, especially after I add a frame mounted fairing to the bike.