As far as frames go (for old and new), I built a wall mounted frame that is on hinges with fold out legs that would put the angle of the surface at 15deg. when not in use, it folds flat-ish to the wall to allow extra space. The image is when I started putting it together at my old house. The center is empty in the image because I used the main part of the old standing frame to fill that in. I know it is 10’ wide, not sure how tall, but I added skirting around the outer parts of it once I attached the spoil board. In my new house, I have flat sheets stored behind it. For the original Maslow, the top beam sticks out on the same 2x4 pieces from the original frame plan, I just added more for support and stability. They can easily be removed to allow the Maslow 4 anchor points to be installed at the 4 corners.
I found another pic, though it doesn’t show the top of it, and I have it cutting a tree out for my son’s high school band about a year and a half ago.
