There's no rule that says you have to match a cavity cover to the body. A nice rosewood cover would look great on almost any color or clear. I've got, yet another, redwood build going on right now and I went with maple rear cavity covers. Trying to match the redwood didn't even cross my mind. You don't choose pickup rings, pickguards, knobs, etc to match the body...you choose something that compliments or accents it. I think it would be great if W offered wood cavity covers. But, I can't even get them to give me cream plastic ones on my body orders, I get black every time.
As for my requests, I think a 25" conversion necks would be great.