The rops I don’t think are available new anymore. I sold my sport rops earlier this year. Your best bet for those will be used from someone who did the 4 seat rops like I did. I’d also check with On the Rox and diesel freaks to see if they may have a take off. Diesel freaks has a roll bar but it’s not rops certified.
Be careful with the stock spare tire mounts. They aren’t really rated for larger tires and I’ve even heard of some tailgates cracking from the mount. Maybe some snubbers on the tailgate and/or body to help keep the spare from /flexing/moving, much like the old TJ’s had.
Doors are pretty much all aftermarket anyways so check out the various options out there.