Is there a thread or page with all of the brake rotor dimensions? I've searched the board to no avail, though I may just be missing it. Seems I've seen a diagram with them before, but can't recall where.

 

Performance brakes (standard on the base F-Type): 355 mm front, 326 mm rear.
High Performance brakes (standard on the F-Type V6S): 380 mm front, 326 mm rear.
Super Performance brakes (standard on the F-Type R, SVR and F-Type V8S): 380 mm front, 376 mm rear.
High Performance and Super Performance brakes are/were optional on both the base and V6 S.
Not sure about the 400S but I think it came with the Super Performance brakes stock, and I think the 4 potter (300PS) comes with the "base" Performance brakes stock.
Carbon fibre matrix (CCM) brakes (optional on all F-Types): 400 mm front, 395 mm rear (I think!).
Of course these are the brake rotor diameter measurements, I can maybe dig up the thicknesses later. Also, some specs quote 325 mm for the base rear brakes rather than 326 mm.

 

I'm going to see about getting some custom rotors cast for me, so I'm looking for all the info I can find.

 

 

It was actually that thread that lead me to ask around about getting some made. I think I can pull off something similar for a bit less, just need the dimensions to get started.

 

OK, sounds like you need the rotor thickness measurements as well.
They are front (380 mm diameter): 36 mm / 1.42", rear (376 mm diameter) 26 mm / 1.02". Also note that the braking face on the rears starts a fair way out from the hub, ie there is a big gap, but I don't have the measurement for that gap to hand.
I'm pretty sure that to get a custom set made you would need to give them a set of the stock rotors to work from (or they could get a set themselves) and just the measurements won't be good enough.