There is a link to the Lions Clubs on the official site. That has information on where the buses pick up from and you can search for your nearest one.
http://www.avfclionsclubs.co.uk/index.php/search
Try this, valid for that date. Would have to buy tube and train ticket from Vic to Selhurst seperately.
http://www.londonmidland.com/tickets-and-fares/tickets-and-fares/the-great-escape?=
You have to print voucher and buy ticket on the day.