Aah, Painted inside - that explains it.
Not a Vistalite guy either. I have no idea what it's worth. From the bits I've read about Vistalites - that cracking is probably not unusual, especially in a marching/parade drum - I'd think a lot more stress on the shell from the jostling hardware. - - Also, I understand that they can crack from over-torquing the nuts 'n' bolts.
Maybe post it in the "For Sale" section of the forum - on the home page - down toward the bottom. Also, If it were mine, I'd dig into the Vistalite web sights for interested buyers. Those folks, no doubt, know the value of them, in consideration of condition.
This link is from the Vistalite sites question "What Are My Vistalites Worth?"
http://www.vistalites.com/reference/valuation.htm
Hopefully, you can at least get back what you paid for it guitar3