Outer Limits 4x4 Board

i cant afford an airlocker so i will look for in the near future for something auto, what would a lockright one be like in one of these, has anyone got something like this?
what would be the best locker to use(eg detroit,lockrite etc etc)?

save your money for the air locker.. do it once, do it right..

poor people cant afford cheap things.

YMMV