Which Zoom for ZX-5N

If you had a ZX-5N with a cranky kit lens, which Pentax (or other?) zoom lens (in the vicinity of 35-90) would you choose and why? I've seen two SMCP-FA 28-105mm f/4-5.6 lenses (one is IF (??) one is not IF) and a 28-70mm f/4.0 AL. Need to know which ones will REALLY hold up mechanically (not

Re: Which Zoom for ZX-5N

If you had a ZX-5N with a cranky kit lens, which Pentax (or other?) zoom lens (in the vicinity of 35-90) would you choose and why? Perhaps the FA24-90 for it's useful zoom range and optical performance. But I have not tried this lens so do not know for certain. The Tamron SP 24-135 could be