Hey trixler,
When you say standard, you mean just a plain p2 non vision? Right?
As the STANDARD reference, is usually referred to the P3 ( Standard ).
To use a GoPro with the zenmuse gimbal, you should not need the vision hardware. Just the proper wiring! You must also make sure your phantom mainboard, is the updated one, it will say HD-2D v2.
If it is an older phantom it may have to older board, I've personally never seen one with the older board, but remember reading about it, where members had to update their mainboard to use the first zenmuse h2-2d ( I believe? ) or something like that. Now I've never setup a GoPro, or even ever owned one, so I cannot offer much help there, but I know a LOT of people use them, I believe you need a FPV setup of some sort ( things like videoTx, receiver, batter ( 3s ) or hard wired, monitor ) things of that nature, again, I wish I could help you more, but I'm really not familiar, other than what I've read.
I'm sure someone here, can better help you in that matter!
These guys/gals, are brilliant!
Ok
The vision camera,
It is actually a really nice camera, and durable, has its own wifi unit built in, can't ask for much more, where they failed is the 1 axis gimbal, PITCH ONLY! Which I think is their only fail with this craft, but on the other hand the vision gimbal is super tough, rarely breaks in a crash, but rather comes loose from crash, you might get a torn cable, or broken jello ball, but the darn camera will still work! ( again, not a 400' fall onto concrete ) I'm talking like if you clip a tree limb, or bump a tele pole! Things like that.
Now,
They do make several pretty nice 2 axis aftermarket gimbals, from $60 - $300, depending on what you want to spend, these gimbal also fit go pros ( not all but most do ) the egg camera on a 2 axis gimbal, is pretty sweet and cheap.
Here is a VERY short video I took a while back, after gimbal install
( China 2 axis gimbal, with the fc200 camera EGG )
( short video is due to battery failure, shortly after takeoff! )
I don't know about you, but I was pretty impressed with it. Now it won't touch a P3! But still very nice for a p2.
Just search around, I'm sure you will find LOTS of really cool builds with all kinds of different gimbals, and cameras!
Like I said, these guys/gals are brilliant!
J Dot