Hi Ryan
Yes, that's the correct spring no.; the 01092 gives the spring dimensions and the -36 is the spring rate, in this case 105 N/mm.
For reference, here's the chart with all your options. The 105 N/mm is perfect for me and my riding. As you're fitting an Evotech hanger, I'm guessing you won't be taking a pillion so it should be fine for you too.
For the spring itself, try Mark Hammond at MH Suspension 01249 721001
www.mhracing.com. Budget for £75-£80.