I got the OEM seal kit from CruiserDan here on IH8MUD. Highly recommend his service!
Benchworks charged me $249 ($260 with tax) and got it done in under 6 hours. They didn't need the factory seal kit, and don't credit for parts if you bring them in yourself, so I just had them replace everything with what they use. Pat, the owner, said that they only use OEM stuff anyway. No problems, as CDan is kind enough to let me return the factory kit.
I don't know about the online steering shops, but I feel really good about making a nice, relatively local contact which I will definitely use the next time I need steering work, and I have no doubt that Pat would stand by his work if anything were to go wrong.
So far, no leaks and the box works great!
-H-