I play in the Oregon Marching Band and bought a black Squier P-bass for rainy days (it rains in Oregon, occasionally

...). My idea was to mod by applying a black pickguard, black bridge, black knobs and a big yellow O around the pickups. I bought a new bridge, and I'm having a bandmate make cut me out a pickguard. My questions are:
My new bridge has different screw holes than the stock. I'm thinking I remove the stock, fill in the screwholes with woodpaste, and redrill. Is this the normal method?
Is the stock bridge likely to be glued down? If so, how would I go about removing it?
And I'm sure this is a stupid question: How do I remove the knobs? Just pull? I've tried, but I feel like I'm going to pull out, or bend the pot if I do this. Suggestions?
The bass doesn't sound half-bad with the stock pickups, but I'm curious how dramatic putting in a Basslines quarterpound would be?
Thanks all.