In reply to SuperLee1985:
I think you're going to struggle with a bunkhouse. There's a nice caravan site at a farm I know of which always looks very presentable and within walking distance of Anglezarke Quarry:
http://www.wilcocksfarmcaravansite.co.uk
Bay Horse Pub do B&B and good food:
http://www.thebayhorse.co.uk/
Yew Tree Inn/restaurant walkable from Anglezarke Quarry:
http://www.yewtreeinnanglezarke.co.uk/
Some Premier Inn's knocking around. Sorry, we're not used to people visiting in a National Park sense which is a shame as there are a lot of climbs here requiring traffic.
You'd probably have better luck with this kind of accommodation in the Ribble Valley or Trough of Bowland where there is also some climbing, but I appreciate its a bit of a hike from there to Anglezarke each day with a big group.
If you were willing to camp you could ask permission from the BMC to wild camp at Wilton 1. I know they've allowed it for Wilton Fest, but don't think its encouraged.