New EMG pickup for my guitar

I just received a replacement EMG HZ H4 pickup for my Vester. I ordered it used from ebay. Since my Vester has one humbucker (double-coil) and one single-coil, I plan on replacing the bridge pickup with an EMG HZ S3 singled coil. And since I’m changing out electronics, I’m going to replace some other parts (potentiometers, wiring, etc.). The big question that remains is whether or not I should also strip down the finish. You can see a picture of the Vester in My Scrapbook under My Pictures.