Used office chairs (five wheel and adjustable), custom built horizontal shelving and work benches (2"x4" frames with 1" plywood, laminate vaneer), wide aisles and many 36"x 60" tables.
Don't forget a CD player or stereo. You need some music to keep you going during the proctor mold compactions and through those long consolidation tests. I'm sure BigH would recommend a turntable for some jazz on vinyl. (grin)