They're out there, you just have to apply yourself to looking, and within 14 days a good one or two will surface... It's not quite buying and selling season at the moment, but bikes are changing hands.
When the new SD1200 comes out you can have one of ours. LOL.
Meanwhile, you could just spend loads on your SD. It's already a great bike, and most of the extra 10-15bhp on the SDR are made by rpm. If you like the single seat that's about £400, and full Ti systems turn up at around a grand...
Klincky's 06 SD makes 130bhp (same as my tuned SDR) at the wheel with just the usual mods.