The retainer is wonky? If it's bent a little , just bend it back, they don't have to be awesomely perfect, the bearings just have to be able to be in plane with one another without it getting in the way. If it's gummed up, soak it in mineral spirits or gas or kerosene or whatever overnight, air dry it, and regrease.

If you've taken it out it's also possible it's in there backwards, which will feel super wonky and may have bent it. In the pic above the side that is down on the one in the bottom middle is the inside, i.e. it should be against the spindle. If you mess with the parts loose in your hands for like 10 seconds it's obvious how it goes together, but when everything is all greasy it's easy to screw up.

You can pack it without retainers and it will be fine, just lay in a bead of grease, put in the bearings one by one, and lay a bead of grease over that. Grease is gooey enough that they won't fall out if you're careful about putting the spindle in straight. You will be able to fit an extra one in there, but I wouldn't necessarily do it. Putting in an extra bearing makes the bearings run on a slightly different part of the spindle and cups, which means that instead of the nice beautiful race that your bearings should have polished for you, you're out on fresh metal that is rough by comparison even fresh from the factory. Not a huge deal, especially with a BB that nice, the point being more that you don't have to put another one in. If you do go that route, use all new balls and be sure to get grade 25 (not grade 300, which is worse).