I would look at the local churches for their MDO programs. Most are "full", but get on waiting lists because a lot of openings come up about the time school starts. There are lots of MDO church programs in the area. My son went to the First Baptist of McKinney program and it was good. This year he is going to the North Texas Christian Academy at the Church of Christ. I've looked at a lot of the programs in the area and found very few that I would not recommend, we chose the NTCA for reasons specific for my son.
I think one of these programs are just what you are looking for, and remember, get on the waiting lists!!