I think your best bet would be to contact a window/door/glass company and get their advise. I've installed vinyl sliders where the fixed panel was friction fit with no clips or fasteners, but there are many types out there that install differently. You also might try looking up the mfgr and contact via their website or by phone.

Like automobiles, there is a huge variety of doors and windows with varying prices. If you're in Florida, I'd check out PGT.

That's what I had to do when I did this fix recently. Remove the screen, remove the stationary panel, remove the sliding panel. I then removed the rollers and determined what size to buy, but because I didn't have the time to go get the rollers that day, and didn't want to leave the opening open overnight, I reassembled the door, with the broken roller. Then a day or two later when I had the replacement, I didn't want to go through the same effort to remove the doors, I tried lifting the end of the door with the bad rollers (carefully) and used a mini-prybar and a small hammer to tap the bad rollers out of the slot. This may only have worked because I had already removed it earlier, so that it was less stuck in place.

I was never a fan of slider doors and agree that going back with a swinging door is best. Two 36" doors would be my first choice. If swinging at either end won't work,one can be swung from center. Alternatly,you can install two fixed plus one swinging door. You can choose single pane glass with or without deviders in 1-2 or all three positions. Two 24" slabs fixed at each end plus one pre-hung 32" hinged at center position equal's 80" of door,leaving 16" for jambs and trim. The configurations are endless if you hire a good carpenter.