Note: It is ALOT of work, my own estimates put it at around 100 man days or so. We have a fully developed specification that I can show you, following a signed NDA.
In the mean time I'm happy to email you over a summary of what's involved.
Initially ask any Qs here and PC me to talk details. Fundamentally though its a Full blown TrackDay organiser's website with the XF forum linked into it.
Grr... I can't edit the thread title! I was going to change it before I posted and forgot. If a mod/broganbot can change it to 'Website Project with links into XF', I'd appreciate it.