It’s understandable to want to make connections, but your student visa will not allow you to stay past any practical training, and employment-based visas are extremely limited, particularly if your subject is English? (likely non-existent in the US)
Because the costs are so close to your maximum budget and without additional support, the CSU’s don’t seem to be the best option. @MYOS1634 makes an excellent argument for considering Australian/Canadian/Scottish universities as a more economically feasible option, I’d consider them seriously.