Two schools of thought:
1. Yes you can do a lot yourself and save some money.
2. You can have the dealer DOCUMENT a service to give you a starting point and THEN if something is wrong, you have grounds to go back and ask them what's the deal?
For $325? I'm having them do it and DOCUMENT that the bike is good to go.
Of course, their ulterior "plan" might be to find something that needs "attention" and bill you for it, in which case you ask them why were they going to sell it to you in a condition that "warranted attention"?
$325, no more, bike is GOOD TO GO!
Cheers,
Steve