I've been doing some research for you yesterday/today (I look up parts for a living), and I've narrowed it down to two options for you.
#1. Cut em, 1 coil won't put anyone in danger, the ride wont be as smooth, from what I was seeing, you might want to start out with 1/2 a coil because there aren't a whole lot of coils if that option is even possible. It almost looks like the spring tapers off at both ends, rendering it impossible to hack off a couple coils.
ebay page SV6 coils link
#2. Measure out the dimensions of the spring (i.e. how long, top & bottom diameter, how many coils, etc) and go hunting through junk yards/parts stores/online.
No matter what you do, you will have to cut something since there is no aftermarket parts available. Man if I were closer to you I'd love to surf through some junk yards & parts stores, and possibly figure this out. It sucks being the first and having to do all the legwork. If you get it figured out, it can be very rewarding