Thanks for the info. That's the first mention I've seen of a rebuild kit. Maybe I'll rebuild the one that comes off as a spare (actually sounds like fun to me).
I'd love to do the work myself. Unfortunately my house has no off-street parking. Laying under the car last night with traffic wizzing by makes me think it's not a good idea to work out on the street. My next house will definitely have a garage.
I've decided to let the dealer do the accumulator and valve replacement, though I'm buying the parts elsewhere to save money. Hope they know what they're doing.
Unless there's some kind soul with a jack and stands in Seattle with some free time next week...