I have a tank from an MX250 that I run with my 75 DT250B mxer. Not sure if it's something you're interested in, but I can send photos. Inside of the tank is near perfect; outside is just primer. Includes a petcock.
"The bold adventurer succeeds the best.” - Ovid
WTB: Plated KTM EXC450/525 RFS, Honda CRF450X, Suzuki RMZ450