If you have a big compressor (at least 60 gallon), the venturi pump should work. You'll probably want to use a shop vac to remove as much air as possible before starting the pump. It will greatly reduce the time needed to pull the vacuum.
The biggest problem you'll have is getting a perfect seal on something that large. If the seal is not perfect, then you won't want to use the venturi pump, because you're compressor will run nonstop.