If any of you can make this trip, I heartily recommend it. I have been to 2 of the Manx Club's events in Lone Pine CA and had a super time both trips. If you don't have a buggy, no problem, there are usually a few extra seats. Only caveat is due to insurance reasons, you need to be a member of the Manx Club (you can join at the event.)
Here's a link to the Manx CLub forum and some more info.
http://manxclub.yuku.com/topic/1113/Big-Bear-Bash-2014#.UuQ2DKV6hGFOne of these years I'll be heading to Big Bear.