SeanQ:You can get a lot of the components from mcmastercarr.com. I'm not sure about the part numbers but I know they have been posted on here before.
I bought springs and thin rubber hose to cover them from mcmastercarr.com for my jets.
Spent around $12 or so and I had them within a day or two.
Definitely the way to go if you are willing to do it yourself....(DIY?)