Spectral SDR 3000 - alternatives?


as it seems almost impossible to get me a Spectral SDR 3000 here in Germany I'd like to explore alternatives. I am looking for used transports as the older machines seem to be built much more massive. As DAC I use a Wadia 64 and an Audio Research DAC 2. Quite vintage, I guess.
The rest of my gear is tubed (custom made by a small German company) with highly effective speakers (>93 dB, but no horns involved). Musically I like Rock, Metal, New County, Blues,...

I appreciate your suggestions,