Regarding the bushes: I stand informed! Yes, the mentioned matters will take care of that side of things. Now to find someone north of the Vaal (or should I say north of the Jukskei/Krokodil) to amend my Thorens accordingly!
Very keen on it myself, so if you do find someone, please let me know?
The first WTL generation of the point-contact bearing (one that is on that linked page) has the spindle totally submersed in very light silicone fluid inside the bushing.
Wide gap between the walls of the bush and spindle results in practically 0 viscous drag. The effect of Teflon sliding is that it does offer a minimal friction which is a good thing - it keeps the belt/string tensioned at all times.
Bottom, off-centre contact point, as per designer - to keep the fluid running between the contacts AND to nudge the spindle in the right direction so that motor+string do not have to do heavy-lifting
Large volume of silicone fluid is there for two reasons - to lubricate the Teflon/spindle contact points AND to further absorb any mechanical resonances. He's done that very successfully with his no (conventional) bearing Well Tempered Arm already; silicone does the job.
EDIT: The later, triangular bearing:
http://www.6moons.com/audioreviews/welltempered/3.html No idea about the insides, but fairly easy to imagine.