Welp, looks like I'm a bit behind schedule for posting all this, but better late than never.
This is the first attempt at fabricating the screen with ABS + acetone slurry. I cut the plastic from my old printer and let it dissolve in acetone. I used the bezel from the Lilliput, and embedded it into the frame from my vent ducts. However, it turns out that the acetone warped the lilliput bezel and so rendered it nearly useless.
I ripped out everything from the vent frames and tried again, this time, instead of making all the surfaces out of slurry, I cut chunks to fit from my printer and molded the slurry around the solid pieces. Since I didn't have a bezel for the lilliput anymore, I had to cut a piece of lexan the same size as the screen, cover it with aluminum foil so the slurry wouldn't stick to it (Reynold's release wrap is great for this), and mold a new bezel completely out of ABS.
This is a pic right before the initial paint job.
And this is the first paint job. I didn't have the right grades of sandpaper and so the surface was a bit rough. I have since resanded and repainted it to match the dash better.
Here are the attachments for the lilliput guts that hang out the back. Because of the short length of the ribbon cable, I had to angle the circuit board downward in the metal frame. I've also soldered wires to the power and brightness buttons that are fed down to a switch area in the center console.
Here is the opening that the screen fit in. The vent ducts are blocked off with pieces of sheet metal and HVAC tape. I put the GPS antenna above one of those ducts.
