If you visit Ken's site, you will also be treated to other great examples of the art of Homebrewing, plus actual on-air sound bytes from his R-dyne. From his site Ken indicates he built this receiver from the specs on this site, so from that i can gather the upper deck layout. Clockwise starting from the upper left is the mixer pentode, the 6J7 or possibly 6K7 ( nice ceramic cap there, Ken. ). To the right is the detector and audio dual triode, the 6SN7. At lower right is the local oscillator triode, a 6C4 or 5. And as can be seen, power is being cabled in from an external PS. Ken did the smart thing, here, by moving that tuning cap as far to the rear as possible, and shaft coupling to that gee-golly gorgeous vernier dial. While i am personally a National HRO-dial and PW reduction drive fan, i would really like to run into one of these verniers someday. Really dresses up the front panel, and looks very precision.
Here is another view more to the front, showing more front panel detail. The knob on the left side looks to be the front end preselect. The one on the right is the reactance / regeneration control. And, obviously, the 'phones plug in from the front. I am not entirely clear if Ken used black crackle for the front panel or not, but there does seem to be a slight patina to the front panel finish.