I Need detailed plans for a MVS Mini Cab (bartop or whatever)
You realize there's no official MVS bartop, right? I get the feeling you are trying to recreate a product that doesn't exist (particularly because of your phrase in the subject, "Bulding [sic] a replica MVS mini cab")
Honestly, given the sheer volume of information you are requesting (basically you want a shopping list and guide for how to build an arcade from scratch), it's fairly obvious that you don't have a lot of experience with this type of stuff. How on earth are you going to successfully build an arcade
from scratch when, as of now, you don't seem to know the first thing about it?
Given that you say you have space limitations, you're probably better off just buying a supergun (or building one -- it's a much less imposing project and it would teach you a fair amount about arcade hardware basics), or buying a bartop like you want (assuming you could even find one).
If you are serious about doing this project, you should read up more instead of just asking for help at the first step. The fact that you say MAME plans are "useless" just proves that you haven't even tried. I know something about arcades but I know very little about home-built MAME arcades. Having said that, I've seen websites with MAME cabs that use regular arcade RGB monitors, and the difference between the physical construction of such a MAME vs "regular" cab should be very small (obviously we're excluding the MAME cabs with "shelves" for PC monitors, here).
Try harder with google. All of the information you are asking about is available in abundance. There's even a published book out there on how to build an arcade cabinet (the name escapes me). I've seen several websites that show you how to paint a cab, for instance. Nobody is going to try to help you until you make SOME effort, or at LEAST whittle down your questions a bit.
Who knows, maybe this thread will prove me wrong and somebody will give you a step-by-step guide, but I think you ought to to gain some base level of knowledge before you even consider a project of this magnitude. Maybe not, maybe you're actually an electrical engineer and just don't know dick about arcades, but I'm guessing it's gonna be rough for you if you just dive head-first into building an arcade from scratch without having any previous experience.