Did you take a peek at the thread the Californian teacher lady started about rain gear.
I mentioned a company that .makes reasonably priced stuff, waterproof with zips, but personally have not seen any of it person.
Waterproof Jackets from People Who Really Know Waterproof Jackets!
I understand about budget, perhaps this companies tops and pants are worth a look. My experience certainly finds pitzips a big plus, and rain booties.
I don't know about this company's jackets, but we've had 2 of their helmet covers for 7-8 years. They are well made products.
P.S. Oregonians know about wet weather gear