With all the stories I'd read over the years about getting the feed to the focus, this design is a breath of fresh air.
Makes for painless and independent tweaks to the F/D, too.
I always hated the idea of bolting the scalar to the support legs.
Now, accuracy on the leg length isn't critical.
Not sure I can squeeze an ortho feed into that stovepipe, but a big coffee can might work.
Great pictures - thanks very much.