what should a 900000 service cost, belt change etc

Welcome to the AF!

Use the following form:

http://www.edmunds.com/maintenance/MaintenanceServlet?tid=edmunds.a.landing.feature.. 4.*

http://www.toyotaownersonline.com/parts-service/diy.php

You can also go to techinfo.toyota.com.

For $10 they give you 24 hours to download every avalible repair/owners manual for your vehicle, plus anything else avalible for anything else Toyota has made.