Sounds like it is the battery that is giving you problems.
If the regulator is stuffed, you will usually get weird tacho readings and the temp gauge goes doolally whilst riding.
The MS eproms originate from Italy I believe. Couldn't tell you exactly which one you have though.
if you want peace of mind, order one of JHP's via ducati Coventry. tell them exactly the setup of the bike and they'll burn one to order.
The bike will still probably need/benefit from getting setup correctly though.
If you're going to buy new filter, look at the Pipercross MPX038's. the fit exactly the same as the OE ones, seal a lot better, last longer and flow better. £20 or so a set
