I doubt it. The VT's have a double tube backbone that allows the air cleaner tract to run up to the carbs. The Fuel Tank tunnel is very wide.
Keep an eye on eBay. I saw a nice looking FT Ascot tank on there last week. Don't know how often VT tanks usually pop up. I bought one new from the Honda dealer back in 1992-3.
J.
PS: I wonder if other Honda V-Twin bikes would have the same type of under tank profile? That may be another option. Of course you could splice two tanks together if you have, or know someone that has, good fabricating skills. Use the VT tank underside & adapt another tanks outer shell to that & weld it up. Of course it would then need to be painted, unless you like the raw look. Then just strip it, sand it & clear coat it.
