MZ/MuZ Riders

I have a split in the gas tank on my Mastiff just above the knee grip. I am testing my repair but would really like to replace the tank.
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1 -Anyone have spare?
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2 - Know the plastic type for the tank... ployethylene?
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3- My Mastiff has a wiseco 11:1 piston and a Hot Cam both designed for a Raptor. I need to bump the limiter to about 7800 to 8k. I do not want to remove the limiter just raise the limit.
Thanks, Kirk

dont even sweat the rev limiter bump, Nice to have, but not necesary and for the cost... I have a tank for you. Great used condition (using it currently) and can be ready to ship in a day or two. Let me know.

Yamaha TDM 850 CDi will raise the rev limit-a friend races the XTZ engines, and says the raised rev ceiling is still within safe levels, so will not damage the engine.

Look on ebay, as they are expensive new