You've got a few options.
If you want to keep the stock appearance, you can simply bolt on the riser from the 1100 Evo, which is 20mm higher and a straight swop. As I understand it, you don't need to change any of the stock cables/hoses with this mod. This is what the difference looks like:
The part no. is 360.1.127.1.A. (Don't know the price though.)
I know one of the members on here, "Claude", did the opposite swop on his Evo to lower the bars. (That's his picture above.) You could PM him to see if he'd sell you his old Evo riser.
If you want something more blingy, CNC Racing do nice individual risers in various heights...
https://www.designcorse.com/collecti...ant=4231975937
as do Rizoma...
http://www.rizoma.com/street/ducati/en
both of which are available in the UK.
The agony of choice!