$200's a good price to pay someone to do both of those items together. I am curious as to what all the other items were on your list and would love to comment on them, if you don't mind sharing. Many are probably things we (on this forum) have seen or heard before and can offer practical what-really-needs-to-be-done advice. I would be wary of just dismissing everything on the list just b/c your mechanic says so.
For instance, a BMW tech actually told me not to bother replacing my O2 sensors on my '99 540 (maintenance schedule calls for replacing all O2 sensors at 100K miles and I am well past that). As it turns out (from research on multiple forums), replacing the front (upstream) sensors is very important, and upon replacing them I re-gained a good bit of lost mpg.
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2006 Honda Odyssey EXL-RES
2006 Honda Accord V6 EX-L Sedan
1999 BMW 540i 6-Speed (Sold to M3UOND on 9/21/06)
1991 Honda Civic Si - Occasional Beater