I've got the following panels uploaded in .DWG and .DXF:


You can download AutoCAD 2000 versions [here] or AutoCAD 2015 versions [here]
I can also export them to .EPS if required, just let me know.
Please note that some hole positions may vary from one manufacturer to another. If you're designing an overlay to fit an existing panel it might be worth doing a test print prior to getting your CPO printed to make sure everything aligns as it should.
I do know a couple of panels have been cut from these plans though and they fit Sega cabs nicely.
VEWLIX CONTROL PANELS
Modelled from a E3102171A 2L14B panel kindly donated by Derick2k
Vewlix_2l14B.dxf

Standard 2L14B panel for use with E3018350A joystick brackets.
Vewlix_Mounting_Plate_E3018350A.dxf

E3018350A joystick brackets for use with E3102171A panels.
Vewlix_2L14B_V2.dxf

Identical to the E3102171A but with a stud arrangement to a range of joysticks:

Seimitsu SE - Fits: LS-32/LS-32-01, LS-34/LS-34-01, LS-40/LS-40-01.
Seimitsu SE-P40 - Fits: LS-55/LS-55-01, LS-56/LS-56-01, LS-58/LS-58-01 and LS-60
Sanwa JLF-P-1 for the JLF
Mounting studs for the joysticks have increased to take into account the ~7mm spacers you'll need to use to achieve the correct joystick height.
I've taken as much care as possible to ensure all dimensions are correct and I've printed multiple scaled .dxfs off to confirm accuracy. I'm as confident as I can be without actually getting a panel cut and offering up overlays etc. I would appreciate feedback from anyone who gets one cut so I can update the model if required.
All Vewlix files are available [here].
I'll be adding some custom Vewlix control panel .dxfs once I've finished designing them.