Im new to this site, to bouldering and climbing in general (after years of too many beers and pies). I do know a bit about web design though, and I would be happy to help.
Embedding YouTube video is normally straightforward enough. The time consuming bit is uploading 100's of videos to them though. Depending on how yourkshiregrit is built though it would probably be possible to do them in batches.
PM me if I can get involved!