Bob:

I had the same problem, so I peeled off all the black covering, exposing the aluminum underneath. I cleaned and prepped it, and then painted it semi-gloss black. It looks very nice and saved a bunch of money.

If you want to change the rails, the 98-up V70 rails will fit, and have the built in rain deflector missing on 850s, so you can keep the window open without rain blowing in (mostly)