The only other option you have is to do the warn hub conversion... its a nice kit, and uses "old style" bearings, but if you want to stay 5 on 4.5, you are limited to the ford ttb style hubs. However, I had them on my ranger for a while before converting to the Dana 30, and never had a problem with the Warn hubs. If you dislike the unit bearings so bad, thats really the only thing you can do.
By the way, I have had very good luck getting used ones from the junk yard, and they are dirt cheap there, so you can get about 5 for the price of one. As long as they are on a newer stock vehicle, chances are they are just fine and will last a long time. But, I am a cheap ass sometimes lol, and I just can't justify spending all that money on a part that isn't as good as the factory stuff.