What's the record for UDS builds at once?

I'm working on getting a UDS building party together. So far we will have 2 underway, but I'd like to get around 5 or so. I was just curious to see if anyone else has had a UDS build weekend party.

Well we did not get done in one weekend, but a buddy and I bought 6 drums and we built 5 UDSs. One for me and 4 for him and his dad, BIL and other BIL. So we built 5 at once. Mine took a bit longer due to my personal mods and paint.