If your around, can you tell me if you made the wood hinges or you bought them?
I made one small change, not drilling the three center dowel holes, I'm going to glue the top tray to the back block and then attach with a couple #6 screws from bottom. The two dowels seem to keep everything lined up.
One tip, (you may have done this) I clamped the whole works together (w/o spacers of course, but with dowels installed) and sanded the "block" with the DA and then hand block to 320
90% of the hard sanding quick
Thanks again for the file
P.S. I may mill a groove in the back panel for a magnetic strip, my wife never closes drawers all the way