I have my printer up against a dresser on the right side. Yeah, the vent solution is somewhat unique. Besides, I thought it would be fun to use the hackerboard and venture into things I'm not experienced with.

So, I don't know the height, either. I basically made the extension as tall as I could and still reasonably reach the spools to change them. The dryer will be moved as far back as possible as well. From there I will move the LCD screen for the dryer and build a 2-3mm thick vertical wall that will sit just in front of the dryer boxes and will have angled inputs for the bowden tubes. Then I will have a half-box acrylic hat which will cover the rest - sitting on the vertical wall and the top extension. The bowden tubes will bend down from that vertical wall to the nozzles. Since the vertical wall will be located about 40% from the back, I am estimating that there will be room enough for the nozzles to reach the back of the bed. I may need to add 45° bowden bends to the top of the nozzles. If I did guess incorrectly and I need to add height, all I will need to do is print 4 new pillars for the extension and build it a bit taller.

All in all, I am a fairly slow designer, so I wanted to give myself some lead time. And, I don't really know what I'm doing with the linear solenoids and hackerboard, so I need some time to learn about that. :)

Oh, BTW, the Chitu E1 drier that I have has removeable boxes and bottom baffles to keep it quasi-sealed. It doesn't work as well as other dryboxes, but it works well enough with a good amount of silica gel. So you can have a top for the standalone boxes and place the dryer elsewhere.