Tube sound with no tubes

I had a TVC using the S&B Mark I trannies. It sounded more like a tube preamp than a lot of tube preamps did. By that I mean it was full and rich, but with lots of transparency and resolution. I'm not sure how a TVC would work in your situation, but it's worth looking into. I would still have one in mine, but I changed amps and needed the extra gain.

Shakey

I've had my supratek Syrah on 24/7 for 4 years or so, and I've had to replace one tube. (the power supply tube)

Not really a whole lot of maintainence...

Plinius have a tube-like sound.

You may come close to "tube sound" with some of the brands mentioned but you will not achieve the dimensionality and soundstaging of a good tube preamp. For that, well, you need tubes, not transistors.