I would second the better bar, but I would get a rack on Craigslist. I picked up a basic rack with a low and high pully, plus a bar and a 300some lb set for $120. I actually use the pully much more than I thought for scapular prehab neck work and warmups when its is cold.
I have it butted up against my platform, and I added a small plywood extension off the platform, so I can walk under (on the same level) to unrack the bar.
IMO, you really dont gain that much from a nice squat rack. A good bar can last, I need one, as I have broke/repaired my shitpile bar 3 times.