You want a scale, as well. If you really need to go low budget, you can get electronic postal scales with 1 g precison (poor for chemistry but better than nothing) at office supply stores cheap, or better get a 0.1 g or better electronic scale.
As far as fume hoods, I have heard that you do not want to filter the exhaust, it sounds nice as an idea to clean up your waste emissions, but it causes the thing to back up and does not work well. I am curious to see any plans, one day I'll want to make one.