ProAC / Shunyata / Linn / Rogue Audio - Whats Next? Japanese ? Vintage?

Hey Everyone, 

I am relatively new to this world, but have jumped in pretty quick and absolutely loving it. 

My current set up is 

ProAC D20s (also have a pair of Tablette 10 Anniversary - Love them, so powerful for such little guys)

Linn LP12 Majik with a Vintage Ekos Arm, MC Krystal and Lingo Power Supply

Rouge Audio Magnum III with Shunyata Delta NR V2 Power Cord

Shunyata D6 with Delta XC 

I am waiting on a pair of ProAC Speaker Cables and currently demoing the Naim NAC

I recently picked up a pair of Altec 19s in great shape and excited to have those. Not quite sure how I will integrate them into the system yet, but it's a piece of history that I am excited about. I used to live in Japan, so I certainly an excited about some things like AudioNote and could potentially be something to look at? 

I saw a beautifully restored McIntosh MC240 that I thought would be amazing to perhaps look at replacing the Rogue Audio with. I do love it, but it does seem like the first place that might be worth upgrading? 

What would you do if you were in my situation? And what are some of the first steps at improving? Is it looking at finding unique pieces to replace the integrated amp? 

Excited to hear!!