ok i have a 00 civic si with a stock motor

im tryin to see how much its going to cost to get a tune up done at a good shop. i would do it myself just dont have the time and need it done before memorial day weekend

here the list of what i want done

new spark plugs
new spark plugs wire
new disturbtor cap
new disturbtor rotor
new headgasket
new timing belt
new water pump

feel free to add anything else you think i might as well do since im here

any help on pricing is appreciated

name the price and shop if you can

budget is around 400 give or take a couple of hundred

i know i might not be able to get everything done at that price but if i cant ,
name the more important things i should get done before others

motor milelage is around 90k to 100k

and do you think it will be cheaper if i get the parts myself or let the shop provide it