How hard is it to replace pickup mounting screws?

[shadowen]

I'm just getting into working on my own instruments. After figuring out how to adjust the pickup height, I've realized that a couple of the pickup screws have begun to strip (the heads of the screws are stripping that is) even though I was using the proper size screw driver. Anyway, I found that the guitarpartsresource sells Fender bass pickup screws and I'm contemplating replacing the ones I have on my own.

How difficult is it to do this (I assume not horribly)?

Any pointers (do all screws at once or one at a time)?

Should I go with Nickel or Chrome screws?

The bass is a Fender Tony Franklin Fretless. Really just the Precision pickup needs new screws, the Jazz pickup screws still look ok, though I may just do them all at once.

Thanks in advance.

[MyUsernameHere]

Really, really easy.

One at a time (you really can't do it any other way unless you have a third arm)

Up to you between Nickel or Chrome--whatever you think looks best.