Everytime I've done it myself it has been hit and miss... Mostly miss, hahaha!!!
Most of the time the bridge ends up too far away, so I can't intonate the thing properly. Happened last time, stupid me.
But I've also got it correct a couple of times.
The problem is; I freestyle the measurements and don't know exactly how to do it!
I always use Gotoh Floyd Rose because then I don't have to be 100% anal about stud spacing (one knife edge is straight)
So... Are there any videos about this? Or any GOOD guides? I've searched and found nothing that really helps me out ...
What scale length are you building the guitar to?
looking at that diagram,
scale length = S
you would drilll the center of the holes at S minus the distance from the bridge saddle to the mounting posts.
So S is still exactly the scale length, but you drilled the holes roughly 7.62mm shorter. I don't see an actual distance for the center of the hole to the bridge saddles, just the the center of the hole to the front of the entire bridge, which is 7.62mm
I'm sure you can come up with an exact measure googling harder than I did.
Search Results for Tremolo Routing Templates | stewmac.com
You're probably going to use metric, but here are so gay US standard measurements I found, copy and paste style:
StewMac says 25" to post center. Floyd Rose says 25 1/8 to post center. Personally, I always shoot for the shy side of 25 1/16. I've found that 25 1/8 tends to leave the saddle hang over the edge of the base.
I'm pretty sure none of this will help you, but I'm bored at work and found this informational.