looking for a Integrated amp $6,000 range

Another tube option to maybe consider -  Line Magnetic , several integrated models that would work with the Legacy speakers - 314IA (EL34) , 881IA (KT88), 845IA (845), 150IA (KT150), 805IA (805). I have the 518IA which is now called the 845IA, very good sounding and well built , swap in some NOS tubes.

Isn't there a simple internal wiring change-over that you can do to convert other voltage Accuphase units to US standard?

flying under the radar.
Norma Audio Revo IPA-140B Integrated Amplifier | AudioThesis

Jeff Rowland Continium S2

Balanced Audio Technology (BAT) is superb in every way but just does not get enough mention around here on Audiogon.  They just recently released the latest generation integrated amp, tube driven, that is an outstanding unit.

Check it out... hope this helps you in your quest.

VK-80i Integrated Amplifier — Balanced Audio Technology