The guys I went with and heard about:
Myself, 1 engine case, CVD, radio tray, 1 servo, 1 servo saver
Robbie, 1 enigine case, pipe, 4 servos, 2 radio trays
Jay, 2 engine cases, 2 servos, 2 diffs, 1 axle, 1 radio tray
Feng, 3 engine blocks. 3 servos
Brett, 2 engine blocks, 3 servos
Chris and Brandon, 5 engine cases
Barry, 2 engine cases
Gabe, 1 engine case
Tony, 1 engine case
Ryan, 3 servos
Friday night we counted a total of 32 engine cases that we know of, and trust me there was more but not sure who. Saw 12 Saturday by the time we left at 2pm. There will probably be more as people tear there stuff down and give it a good once over.
Plus for every motor add a clutch bell, and probably half of them a spur gear.