I know you’ve not even picked your car up yet and it’s likely to be a few years before you consider selling it, but if you’ve got the storage space, I’d keep the Richmond’s and put them back on the car when the time comes to sell it.
Many potential buyers - and motor traders if you part exchange or sell to a car buying service - like to see the original alloys on the car. Some aftermarket alloys won’t be to everyone’s taste and could reduce the size of the potential buyer pool. Additionally, IMHO you’d probably get a better price for the car with the original alloys on.
With my last three VW’s I’ve fitted non-factory alloys and come sale time, I’ve been asked if I had the original alloys to put back on the car. With each of those cars, I had the factory fitted alloys stored in my garage in wheel storage bags on a wheel tree and the whole lot covered over with a fitted cover to protect them from damage. With a mk6 Golf GTD I owned, I’d fitted VW Rotary alloys in place of the factory fitted diamond cut Charleston alloys and one VW dealer wouldn’t take the car with Rotary alloys fitted even though they were VW alloys. They offered me top dollar with the Charleston alloys fitted though.
So, something to consider if you are planning on changing your alloys……………