That's a fair plan, but I'd do your research regarding Kahn wheels too- very important that the wheels can take the weight of the RRS. A lot of the aftermarket 'pimp my ride' type bling doesn't have the load rating required for the RRS weight, so buckled or collapsing wheels are not unheard of!! You can't see the eyes of the demon until him come callin'

I personally went back to 20" found the 22" far to hard and uncomfortable ride.
Please also remember, larger wheels are a modification, and you must notify your insurance company, failure will mean you are not insured at all.  John

RRS MY12 SDV6 HSE. Sumatra Black/Ebony & Walnut + Dynamic Pack, + Cold Climate Pack + Memory Pack, Digital TV/DVD, Premium Leather, Cornering Lights, Cooler/Fridge Box, & most Options.

Speaking of which 'Genuine' or 'OEM' alloys seem to be all over EBay. Bit hard to get any proof. Until I started looking I had no idea how many replicas were out there!?