#2
should work. Most knobs are the same size. Check out www.guitarfetish.com too. There's some nice abalone top knobs there
R.I.P. Les Paul, 1915-2009

A man chooses, a slave obeys.
#3
yes, only way it wouldn't is if your pot shafts were strangely huge. Chances are, that type of knob has a screw on the side to tighten down as well. unless you have split shaft pots. that it doesn't matter a whole lot.

point being, they'll stay on fine.
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