Yes, I found several great sites to build my own equipment! Plus, I'm kind of a freak for a female...rather shop for a power tool at Home Depot than go shoe shopping.
My main question is whether or not I should start Charlie on any short jumping exercises (no more than 3-4") now, or leave the jumps out completely until his growth plates close around 6 months from now. He seems to love to jump when he's runnnig and playing, so I think he'd like some agility jumps...but definitely don't want to hurt him.