I'm in coventry Paul so some distance , as I did look to see how far you are.
No issues , obviously there is some wear on the marker , slightly worn on tip , a tiny mark on the body .
Dent in the case ,
To be fair mate your probably after a mint marker I'd guess looking at your previous ones you have owned.
I was going to suggest me covering the cost of sending marker to you for you to test/look at and say you was not interested in the deal and wouldn't mind covering costs to send it back then maybe that could work