that made me laugh out loud
I am fitting a R-1 shock to my Versys, and had a custom rate spring made by Cannon Racecraft in the USA. Got the old Yamaha spring off using brute force but the new spring is stiffer and nicely powdercoated. Nana Screw has car compressors but too large for a bike.
I have been thinking of making one but it would be so much easier if I could buy a bike specific one.
Next application is to respring my Harley as the Progressive springs I have now could be a bit better with a constant rate more suited to my weight.