My fault
love it!Unfortunately virtually all standard factory front fork springs are dual-rate to suit a wider range of people. Aftermarket linear springs are easier to work with adjustment-wise once you're tinkering around with the setup. You need to source springs from other bikes with 41mm diameter forks and preferably of a similar length to the Fazer's fork springs. The information is out there online. As I said, SV650 linears can do the job and are popular due to the bikes being raced (if you can't find anyone who sells genuine Fazer linear springs).
R6 shock - the linkage dogbones have to be changed for shorter versions, as the R6 shock is shorter than the standard Fazer rear shock. Change them or else the rear end will be sitting very low (125-130mm centre to centre holes). I found the standard R6 spring bottomed out on the roads, so changing the spring is almost essential, unless you're very light.
That emulator you've listed on ebay looks exactly like the old Debrix emulators I used, so would almost certainly be what you're looking for
beware of US import tax, tho...
Those emulators also pop up for sale occasionally on SV650 owner forums...
Hope you find all your parts!