thanks for posting up.. tentatively the dates for 2008 are Wednesday, April 30 - Sunday, May 4. I say tentatively because we want to verify that with the BLM, maybe we have different permits or something but with ours it's pretty clear what dates we're allowed to run trails.
Our permit is for 200 maximum trucks, 20 maximum per trail per day. Yes we run all of those northern trails, except instead of 7 mile we do Wipeout Hill, which is very similar. IMO, you guys would definitely not be in the way at all, we always encounter other groups and always find a way to share the trail. And with the exception of Spike, most of those aren't "full" runs anyway.. but Spike always seems to be. But them little golf carts of yours will just zip on by a big group like ours, right?
And yeah we've been going to the Bar-M for our raffle dinner, last year we set a record with ~360 people. Planning for next year will be pretty quiet until September, that's when the next committee will be re-formed and take charge. Feel free to keep posting up until then!