Tim (Malvado) actually set up a dedicated server for it on his laptop after about an entire afternoon of trying. We were playing on that last night. He was saying that he was going to just leave that running all the time so that we didn't lose our shit. I don't think he really has to do that, but whatever.
Your best bet is to have Kazz or I MSN you or something when we are playing. We're on Ventrilo with Tim all the time, so we pretty much just play whenever we collaboratively feel like it and Tim is up for hosting. We only just started playing this weekend cause we were tired of just playing DotA all the time.
This is the first time I've ever messed with Gary's Mod at all and I'm pretty glad I did. Lego Technics made sinfully forgiving and easy - even if not immediately intuitive or ever precise - through the power of computers is a pretty fucking good idea and a good time, especially when your lego pieces can have the size and mass of a giant industrial storage container and be thrown around by magic thrusters, hydraulics, winches, etc.
I really wanna have an other battlebots competition though. Only this time with turrets being banned. Tim and I realized quickly how gay we were being with using turrets. We both basically designed our bots around how they would attack with a turret and defend against turret fire. Now, there's nothing wrong with playing robo-tanks, that's cool and whatever. But, if you want to guide something around and shoot a gun at other people's thing that they control whenever you are pointed at them... in a mod of a first person shooter... well, yeah.
It became painfully obvious how gay we were being when the most entertaining part of our battle came from when we just started ramming eachother and Tim inadvertently flipped my bot over. We should have just been making wedges, hammers, punching arms and all that jazz if we wanted to play Battlebots. So that's what I want to do sometime, is try this again and not allow any turrets.