Designing My Own 65% Advice

[zantetsuken9000]

Hey guys,
Newbie here who just got into the mechanical keyboard game.

I'm starting to look into designing my own aluminium case for 65% layout.

My questions to start are:
Are all 65% PCB the same size?
Are all 65% plates the same size?
Do all screw/bolt positions for plates into PCB's remain the same?
Or are they all dependent on each other specifically?
Like, can I put a RAMA 65% PCB into a KBDFans 65% case? I'm not asking about this scenario specifically, but you get the idea of what I'm trying to ask.

Details like that are what I need to figure out so I can 3D model stuff and get it quoted from factories in China.

I have an industrial designer background and I do this kind of 3D modelling-get quote in China factory-organise samples/production/delivery on a daily work basis.

Would of course, eventually make this a group buy thing, so any and all ideas for a 65% are welcome.
Suggest good PCB's that I can get and measure up to design a case around, etc etc.

Thanks!

[rondg]

There are "generic" PCBs that supports the generic layout but higher end boards tend to have different mounting styles. They have their own PCB, and sizes differ. You can find a readily available 65% PCB and base your design around that.