I had to drill holes for the hydraulic clutch master on my "87 colt vistas firewall, it's not a hard job [if the engine is out of the car, or the dash is removed.] just measure a few times and drill for it once.
Cool tip: Use a Christmas tree looking, stepped drill bit for the master cylinder center hole, I bought the 2 pack of stepped bits from harbor freight [Item #69088]
http://www.harborfreight.com/titanium-n ... 69088.html
The bigger one of the two bits worked flawlessly I just needed to get the outside diameter of the master cylinder then I marked the step on the bit and I knew how far I could go before making a mess of things