I would recommend to reconsider the Accuphase options explore what is available. While I have not personally experienced the Accuphase E-350, I'd buy it in a heart beat if I find a good used one. If power is more of a concern than the budget constraints, I would consider looking at the E-450 currently offered for less than $7k: http://app.audiogon.com/listings/solid-state-accuphase-e450-integrated-amplifier-2013-01-01-integrateds-60016-des-plaines-il
I own one driving Magico V3's, and find it to have absolutely no lack of power, comes with no extra boxes and cable clutter, and offers the sweetest sound that I have heard on any Magico's (which are not the easiest load to drive and rather power-hungry). I don't have any affiliation with the seller, but consider this amplifier to be amongst the best available. Don't be fooled by the nominal power ratings, unless you have a listening room the size of a concert hall. The Accuphase ratings are very conservative, and I have never ever brought it anywhere near its reserves.