This is basically what I did. However, just wanted to share a decent cage that was very cheap and free shipping.
Cage: Titan T-2 Series Power Rack Lift Cage Bench Rack Squat Deadlift stand cross fit
Rubber Mats: 4 ft. x 6 ft. x 3/4 in. Thick Rubber Stall Mat - For Life Out Here
My only problem is ceiling height. I need to box out/reinforce the floor joists that are over somehow so that I can press. If anyone has any thoughts on this I would be interested.