For someone who has never owned a vehicle, you have quite a bit of know how
Regarding the WP, are you saying that a new one was installed after the belt broke? If not, and you're not certain when it was replaced last, I recommend you buy a new one. You can read about the recent adventure of member djmarch, when he tried to do the job using the old WP, starting at post #146 in this thread:
http://www.aveoforum.com/forum/f94/t...4/index15.html
One of our admins, Daox has a nice DIY on the valve job in this thread:
http://www.aveoforum.com/forum/f103/...epaired-10191/
Nice project you have there - good luck with it!