+1 for Woodsong renovation work (I have a TD124).
VG results (for TD124) with "Governor" PSU made by Deco Audio in UK for rational cost: lower noise floor, greater impact.
I have VG results after milling -- using pillar drill-- a solid plinth of German "Permali" wood: twice density of baltic birch (similar if not same manufacturing principle of "Panzerholz"). Plinth stands on decoupling tripods. Image of this posted on my system page. Material of modest cost - around 100GBP.
This set up sounds fast, detailed and richly musical. As others noted, slate may be less optimal. I have found wood somewhere in plinth or under, as support, gives more natural sound with less edge. YMMV.