Oxford Hotgrips - Grip, RHS only

Due to having to fit my grips in a rush, I've butchered my right hand side Oxford hotgrip. It's useable, but looks a bit tatty. I would like just the right hand side grip (and the wiring that is built in to it). Perhaps you've had a crash on the LHS and have a RHS one spare? I'm not going to pay lots for one (I could just buy a whole other set and have some spare parts for £30), but if someone has one kicking about, I'd be prepared to pay £10 for a decent one.