i wouldn't go to KC. his work is fantastic but unfortunately for us it seems like everyone realises it. i do my own setup now, but even if i had to send it in, i wouldn't wait like 2 weeks to get it done, which shows you how popular his services are. i would probably only go to zen if i needed some serious shit done, like bodywork or something.
i've never had setup done by TYMC. you could enquire, but i realise that TYMC is good at what they do, and they do things that some others don't, but they don't do everything.
i would give guitar77 a go. had some major work done by clement. he's a good guy, his work is good and most importantly, he's a bass player.