Sounds very good. Not to mention your son learning some skills he can use all his life.
We still need to do something with ours, not sure exactly what yet.
Just passing it along, while researching ideas of what we think we want I found some people are very clever.
-Formica liner keeps wood from getting beat up by legs of D/O.
-The round cloth carriers, some people put styroform as a cushion between legs and bottom of carrier and replace once Styrofoam get bad. Or combination of both.
I'm in a small class c, and I was surprised how much room the D/O stuff takes up once you get it all together.
P.S. I cheat and use a temp gun.