I did mine a couple years ago. If you are even reasonably "DIY" oriented, and take reasonable care, redoing the surrounds is no problem at all. Pulling the drivers out of the cabinet is the hardest part, you remove the top one through the top panel, and the lower one from the bottom... a lot of Phillips head screws, but nothing hard. The foam inside is all cut to fit, and isn't glued in place, so that's not even a problem, with no annoying fiberglass to get in your skin either!
A kit, including the little "doughnut" dust caps, shims, and glue are available on ebay for, I want to say $75-85, but it's been a while, so I'll just say "under $100.
...Oh, and BTW, when you get them back together, do yourself a favor, and spray a little contact cleaner in the DIN plug going from the "head" to the cabinet & work the connectors on & off a few times. I've had a little distortion show up, that i thought was a failing cap, and it turned out to be those connectors. A little cleaning, and they are good as new!