It will last you for a few sessions. I expect you would use no more than 2 wipes to do that, takes time to get in all the gaps.
You get 10 wipes in a pack, all individually wrapped.
I used 4 as 3 wasn't quite enough, done the 2 footplates and that bit under the wipers.
Yes, was sitting on the footplate earlier when doing the electrics, they appears to be no degrading of the footplate.
The rest of it still looks great too.