I think with your question we must distinguish the differences between "restorers" and one who modifies to potentially make better. Do all those fall into the same category?
Woodsong appears to offer plinths and I don't know if he does anything to the 301 like new platter and bearing. We know Artisan Fidelity mods the 301 to a highly expensive level, then we have to ask is it still a 301?
Same for Shindo.
SME seems to literally restore to origina and plop it into their own plinth and use their own arms, no choices?
Question now is which do you want.
Woodsong appears to offer plinths and I don't know if he does anything to the 301 like new platter and bearing. We know Artisan Fidelity mods the 301 to a highly expensive level, then we have to ask is it still a 301?
Same for Shindo.
SME seems to literally restore to origina and plop it into their own plinth and use their own arms, no choices?
Question now is which do you want.