A very long shot I know, but anyone got an 848/1*98 Alloy Fuel Tank lying around that they want to sell?
How about going for a composite one like this: https://eti-fuelcel.com/product/848-1098-1198-standard/ I've got one on my R. No Ethanol warping!
There was a guy on one of the FB ducati parts groups punting one a few weeks ago. Dont know if it sold or not, but price was a little salty.