Camper Measurements

For the standard campers, are the front of the campers the same measurements regardless if fitment is for tacoma, ranger, frontier, etc? I’m specifically looking to see if the 4 bolts (v1) and 6 bolt (v2) are the exact same from camper to camper. The bolts i’m refering to are the ones that most people use to mount hooks for nettings and such.

I’m also trying to find the same information for the XL Campers.

I know someone thatis starting to make molle panels for the front of the camper and hoping that, for example, a standard V2 camper in front is the same measurments regardless of fitment.