shaft diameter is an issue. if shaft is too thick , will need to drill and widen the hole. another thing to look out for is the string ferrules , some times shaft no problem but string ferules too big.. cannot go in.. lan lan also must widen the holes.
best is to measure the diameter of the hole and then find the best suitable tuners.
the gold tuner in the picture looks like the kluson types... although all look very similiar as its the same vintage kluson design i assume.
no need to drill extra hole as only the first and last tuner needs one screw to stay in place, 2,3,4,5 will need on both sides.