In case you're interested, I've got a Hawg build (with a twist) starting up in January that runs about four months (ending on April 1st appropriately).
It's a "what-if" build and it should be pretty fun. I've heard a lot of great suggestions from people as to what kind of Hawg they're going to build (Navy, Marine Corps, RAF, Swedish)
Any scale, any manufacturer, detail sets are allowed. It's all up to the builder. Just no Starfleet or Macross or that type of "what-if."
http://www.finescale.com/fsm/community/forum/topic.asp?TOPIC_ID=27902
P.S. - I'm not trying to hijack your thread, just wanted to see if there's some way these GBs can "share the sandbox"