Great background track for exactly what you defined it as. I personally would say that with the lack of variation, try to trim it down into a meaningful 3:00-3:30 track. I would also suggest using an anvil FX if you have one (great for factory-like tracks). You can just pitch-down hats to get the same effect also. Vary the pads a bit from bar to bar, and I think you've got a solid track!