looking for a Integrated amp $6,000 range

Strong recommendation here for the VAC Sigma 160i, or better still, the SE version. Available used in your price range, depending on options.

With speakers as sensitive as yours, the 85 watts per channel would be very generous.

This is a MAGNIFICENT sounding integrated amp. I'm powering Nola KO speakers, 89 db sensitivity, and the power is plenty. Carl Marchisotto of NOLA recommended it and uses it to demonstrate his speakers.

Before the VAC, I had an Audio Research VSi60 -- also a wonderful amp, also recommended by Carl M, and available used these days for under $3,000. The VAC has a bigger sound, better bass, kind of more of everything.

It's available with or without a MM phono section, and with or without balanced inputs. Mine is an SE and has both options. I used the PS Audio Stellar phono pre, though, which absolutely wipes out the VAC phono.

I’m looking for a reputable Coda dealer. If anyone has any information it would be much appreciated.

Al from Hi-fi Art in Canada is a Coda dealer (and it's a gentleman)
Or Audio Archon in USA.

Yes Audio Archon talk to Mike

Research, research, research is part and parcel of being an audiophile and let's face it, it's fun. For example, I went from seriously considering a SET from Decware and a Mytek Dac to drive a pair of Zu Audio Dirty Weekends, to actually purchasing a Hegel H90 w/ excellent on board DAC driving new Focal Electra 1008 BE's on sale for 1/2 price. Yes, there are many, many options in your price point, but imho, you will absolutely love the simplicity, transparency, versatility and POWER of a Hegel H390 driving any speaker you pair it with.  As far as tubes, have you looked at Rogers?