So basically a TJ or later YJ Roll Cage?
92-95 YJ roll bar is the family style.
I'd skip the stock YJ bars to the windshield and get an add-on front hoop instead. The stock bars don't do anything because the windshield isn't strong. Putting a front hoop in there gives you an actual cage of sorts.
Yes, you can build something a lot stronger, but do you NEED it? There are literally thousands of Jeeps that have been rolled with whatever bar they had stock and it didn't fail. And some have, but most didn't. They held up enough to protect the passengers, and very, very few ever would have benefited from frame tie-ins, which are a popular addition in the Jeep community.
My rule of thumb is, if you are planning on scraping it over huge rocks, or up and down steep hills, go with a cage with some cross-bracing. If you body is solid, there's still not much need for frame tie-ins, unless you just "want to". Again, yeah, they're stronger, but do you NEED it? I've seen videos of stock TJ's that rolled multiple times down a hill and the stock cage held up. And again, occasionally, they don't hold up.
Make a determination of what you plan to do with the Jeep, and build from there. Chances are, a YJ family cage, with a front hoop and maybe a rear cross bar will hold up to anything you'll ever encounter if you're not going to seriously wheel it.