Zipp hub?

I just got an older set of zipp 404 with the 217 rear hubs that are pretty whipped. Which other hubs can I retrofit onto these wheels? also the front wheel has a ballistic hub. Can these be changed also or should i rebuild them?

Wonderful things spokes. They allow you to build any hub into any rim, provided there are the same number of spoke holes on each, and that you get the right spoke length. Your LBS will be able to advise.

Hope and Tune have excellent hubs.