I also have D Sachs, Dehavilland, Cary, Schiit, and VTL on my preamp list. Dehavilland closed shop and the remote version rarely comes up for sale. VTL would match my amp, but isn't 6sn7 based. The Cary SLP98 may be too euphonic. I use lots of different amps which causes problems picking "the" correct output capicitors for the D Sachs. The Schiit uses lots of solid state parts and that is what rendered my Audible Illusions M3A/B preamp unrepairable.
I watched 3 D Sachs preamps sell in a week on another forum. Four months from now I may regret not grabbing one. Downside is they cost as much as a Chardonnay, and have no warranty. Think the Supratek is a better fit for me. Also like that Mick designs the whole preamp, and not just augmenting someone elses circuit boards.
Thanks,
aldnorab