Yes, some people love the exposed fuses on the ERA and some don't. I finally got around this week to tackling the fuse box covers -- not really a hefty task by any stretch of the imagination. That said, I don't have the patience to hand-file the inside of the Lucas covers; I used my Dremel tool instead and it took about 15 seconds per cover. In order to keep them on there with heat changes and vibrations, I slipped a black zip around and simply trimmed to length.
Cost: Less than $10
Difficulty: Low
Here's a couple of shots -- I really like the way they look.