hey, I just uploaded an attempt to the FXP corner, "C. Bechstein DG Warmed Up". see if it suits you. it´s a PTQ9 preset.
A good starting point for the warm presets are the Bechstein Recording 1 and 2.
it still has a bit of that Boxy, mid congested, sound that is hard to EQ away and, IMO, that´s the plague of most roll-your-own presets - not that I´ve listened all of them .
Most of the times I find that most mics have rather small sweet spots and happy accidents are not that common to come by - but please enlighten me here (sincerely).
The stock presets in PTQ are usually (again IMO, and not always) a step above in that regard, which is to be expected as the Modartt guys know the guts of the software and tailor the presets accordingly.
Anyway, I´ve went on a tangent here. Sorry about that.