+1 for the Custom. I've got one in my Schecter Scorpion (mahogany) and it slays - it replaced an Invader, removing a lot of boomy low end and gross resonant peaks in the highs, leaving me with a tone that can actually make use of a tube screamer without sounding shrill.
Not sure about a cover, but I'm pretty sure you can find aftermarket pickup covers from places like AllParts, or even Amazon or eBay.