Happened to be online and saw your last post...
UNDER NO CIRCUMSTANCES let ANYONE redeem the coin first without paying. If anyone does this, you'll lose the BTC loaded on the coin, even if they'll be doing it in your living room...you'll be able to prove that the BTC have been moved to a different address but you'll never know to whom the address belongs, can't prove that the address belongs to a specific person.  Just for your knowledge, a transaction can take from as little as let's say 10 mins up to 24hrs and it solely depends on how busy the BTC network is. I don't think that you should accept cash and end the auction on eBay, you may get more for the coin there, just wait for the auction to finish and like I said earlier, send a message to your buyer to come and collect, no PayPal and as a tip you can cancel the eBay transaction if your buyer agrees and split the fees in half, you'll get 5% more net value and your buyer will pay 5% less than he won it but there will be no fees to pay on your side so you'll get more net eventually, will be more convenient for both, lots of people are doing this. And about the meeting, don't meet in shady places because we're speaking about thousands of pounds which is a lot of money, and don't go to deliver, the buyer should either come to your place or something public from your neighbourhood, let him inspect the coin, verify it if he wants and straight after that get the cash and everyone will be happy...
Good luck mate, ask anything, will help if I may, don't want anyone else to get scammed as it happened to me and so many others...