I would think it might put off the purists, but at the end of the day it is up to you,but remember your car is the only model with grape colour leather and this can be a unique selling point.
When it comes to alloy wheels you only get what you pay for ,if you buy cheap alloys they will almost be as heavy as steel but spend a bit of cash and you will see better handling due to much lighter wheel weight. Spend the money as buying cheap alloys is false economy
Well i voted you should sell it mainly for the fact that you don`t really want to have it sitting outside doing nothing or very little not very often. You can always get another one their will still be plenty around when you decide if and when you want another. Andy