I take no chances.
Golden rod in the cabinet,and a dehumidifier running constantly keeping the room at 50% RH.
No problems with rust whatsoever.
I am told 50% is what museums keep mixed collections in, don't go too dry with timber.
Dehumidifiers are reasonably inexpensive to buy/run and are well worth while for peace of mind.
I do use Ren Wax as well but that's more for when I have them out and about.