My sister and I built most of our own equipment. We did get a dog walk given to us. It is made for small dogs so is a little narrower but has the same slope as the regular ones. I built an A-frame last year. Just made it three feet wide and eight feet long and it is easy to just pull a pin out and carry the two pieces.
We also have a tire that we got when the people bought a new one. Last fall we bought two tunnels and a chute as they are the hardest to make on your own, especially the tunnels. We also made our own teeter. We used the sand and paint on the contact equipment.
My sister has been busy repainting it all, I will post some pictures when we are through.