I built this combination work bench and downdraft dust collector around 5 years ago and it performs very well and keeps my shop dust free. I paint on it too.
It's very easy to build and can be tailored to your needs and size requirements.
It has a removeable hinged work surface, pegboard on one side and storage underneath.
I did a feature article in Control Line World and if anyone is interested, I can send them a copy.
Bob Z.