WARNING!!!
before you install any roll bar/cage, you have to do a few things. First decide what you are going to do with your car. Is this a car you are thinking about starting to autocross and plan to migrate and later take it on to IT racing or NASA HC or whatever. Or all you will ever do with this car is local autocrosses and some club track schools at VIR or wherever.

Even in SCCA the rules for a bar/cage are different between Solo II (autocross) for stock classes, Street Prepared Classes, Prepared classes, IT road racing, AS, Production classes, and GT classes. It would be a shame to run you car for a while and then decide you want to move up to something else and find you are limited because you now have too good of a roll cage. It does happen.

Then get the rules for the general direction you think you might want to go and make sure you have a cage or a bar that is upgradable in that direction.

Autopower bars are generally made like that with SCCA racers in mind. I would suggest getting an Autopower BAR and put that in first. Live with it a while, enter some events. Then decide where you next step should be. You can then have a local fabricator make additions to the bar, or grow it into a cage for you. You will have a better idea of what you can live with and what you can't.

I will tell you that bar/cage rules for SCCA Solo II are very confusing. There are probably only a handfull of people in the country that completely understand them. I have a better grasp of them than most people in this area, but I still have to refer to all of the books to be sure.

I don't know anything about the cages or bars built by Cusco so I can't say if they are good, or legal. I would suggest comparing how they are built against the rule books. Anyone that builds rollbars will have good safe welds and things like that. Your problems are going to be fitting them into your car with street equipment and how much of a compromise with the utilitarian purposes of your car.

Trust me, living with a roll cage on a daily driver is annoying, more than you might realize. Putting a cage in most cars is one of the first steps to admitting that this is your track car and you have something else for daily transportation.