We won't off you anywhere near that amount, and we came close to filling our World Cup bid (:cool: forgive, first oppurtunity to say it) stadium when we played Swansea in said fixture two years ago. (We are currently limited to 17,250 iirc.)
Twas a second leg then that game though, I'd guess our ever efficient (not) B.O would give you guys 3,000. (Expect them to start at about 2,000 and work there way up after being pestered for more)