I'm going to throw out our 8ish hour robot build as the MCC. For those of you that don't know, we completely tore down the robot to its two drive rails and built a new one at the Arkansas regional.
We made playoffs at all three of our events, including champs, as the third robot on the alliance.
Most everything could be made from Versaframe if you wanted, and a whole lot of #35 chain.
By champs we could do stacks with cans on top and if you just wanted stacks of totes we could do that all day.
It only weighed 100lbs so it was great for cheese caking which was pretty important for a lot of robots this year at events.