Update! Been real busy and didn't have much time to work on the project, but the past week I had some free time so I finished finished mounting all the PC components to the rear door.
I still have to wire everything up, but that's relatively easy and I was relatively lazy last night

. There are three fans not shown in this picture as well. One intake fan which will go on the right-hand side wall, one exhaust fan which will go on the left-hand side wall, and I may mount an additional smaller exhaust fan which will go on the top of the cabinet to pull rising heat out. Most of the cabling will go along the right-hand side (the top of the picture as shown) where all the ports on the motherboard are.

Just a side view showing the motherboard standoffs and hard drive and power supply mounting brackets. I used a small amount of Gorilla Glue in the holes that the standoffs were screwed into because I didn't think they would hold well by themselves since they were threaded for metal. I screwed in the L-brackets for the power supply like I did to provide a little more leverage since the unit will be horizontal when the door is closed. You can't see the support bracket on the rear side which will help hold the unit "down" and provide a place for the rear to rest when the door is folded down.

Close up of the hard drive mounting brackets. I had to screw the L-brackets down underneath the hard drive due to space constraints, plus I think it looks nicer (yes, I shined a flashlight underneath for the picture).

Picture showing one of three "MacGyver Standoffs" I had to make since my motherboard had nine mounting points but I only had six standoffs. I made the standoffs with a nylon spacing nut Gorilla Glued to a small washer (to add a smidge more height), which is then in turn glued down to the plywood with more Gorilla Glue. After drying over night the bond was strong, and I was able to screw the mobo down using some appropriately sized screws. These standoffs are virtually identical in height to the proper standoffs.

Here's the cabinet with monitor installed behind bezel, just missing the control panel.

Here's a rear shot of the cabinet with the door off (it's at my house!) showing the monitor on the shelf, and the space underneath.

Reworked button placement, everything should fit properly now. Ignore the lack of the 7th button, it's there...just..uh, invisible! The light tan area is the usable control panel space. The control panel is actually bigger than the tan area, but can't really be used for placement of anything due to the bracing underneath the control panel.

Martoon worked up this render of the control panel using Rom's Character Fusion art that I like so much. Nifty, huh? Look, there's that 7th button! It was previously invisible, but now is totally visible. See!

Another big thanks to Martoon for letting me use his garage and for lending me his absolutely mad graphic skills

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