Thanks for the comments.
I'll keep posting as I make updates. I should have the overall dimensional drawings finished next week.
Its designed around a 14" PC monitor (the monitor is drawn to scale in my drawings), but a 15" may fit, I don't think a 17" will. The biggest problems in these cabs is finding room for the monitor & the monitor control board. This board isn't shown in the design yet, but it will be.
Anyway, I could only find plastic bezels for 14" PC monitors (=13" arcade monitors). I bought a few from Happs Controls when they were on special.
I wont be producing details constructions details, just a series of 3D CAD drawings and a few bullet points for each. I see it as a guide only, for anyone interested to customise as they want.