It is very possible to do what you suggested (little/no live rock, with good skimmer & bio-ball filter), but keeping the bioload low in order to reduce the number and volume of water changes until your bio-balls filtration gets fully up to speed would probably be a good idea.
Fish only with live rock is the preferred system nowadays because of the natural filtration provided by the rock. On the other hand, critics of FOWLR's point out that when the need to treat a tank arises, you're stuck because most effective medications will kill the live rock. So pros & cons.
Anthony
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If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
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