Bauerp, While I assume you have already done so, if you haven't read the review of the III in 6 moons I suggest you do so. The guy that wrote it owned the II's and bought the III's.
From all I can tell, from my limited listening to it, he hits the nail on the head. He also reviewed my Boleros and I found his assessment right on target and his advise excellent. I highly recommend this reading before you write off the III's (and I don't usually even mention reviewers let alone recommend reading their stuff).
FWIW both Tvad and Blindjim have their own very different expectations of equipment, neither of which may even remotely resemble yours (or mine), and from a consumer expectation point of view I personally think the reviewer's observations might have more applicability to your needs than either.
FWIW. Good luck in making the right decision.