you may want to look into signing up for the demo only forums...you can find info here:
demo only forum
This will give you a lot of help.
I typically carry 2 baskets, one with samples, and one with catalogs, orders forms and such...then I have a tote bag that I carry all of my supplies for the workshop. I try to keep it simple, so that people don't think it's overwhelming.
For you, maybe looking into one of those collapsable (sp?) roling crate carts, it may work out really well for you, we have them here at work, and they're great.
Ink pad storage, unfortunately I can't help you there, I've got the color caddy, and am quite pleased.
Good luck to you!