I have some plates laying around somewhere. I'm not ready to part with the plates yet, but I would be happy to send you some tracings if you wanted to make your own. It wouldn't be hard.
Tuning for these cars is tough to find anymore. Thats a big part of why I don't have a running Cougar right now. Any build at this point should be built to run on day one without a tune, then get tuned later on when a suitable tuner can be found.
Full 3.0 has the most potential, but it's also the most difficult build, requiring a lot more creative problem solving than the other choices. Lots of us have solutions for those problems, so it's not impossible, just the hardest.
Hybrid is the simplest path. There's a lot to be said for simple, but I don't think I would do it with the early heads. I have some SVT heads and a 3.0 block in my basement that I have put together before and I don't like the look of the holes that need to be plugged. I would be very concerned about both leakage and adequate oiling.
Port-matched is the cheapest, and gives you the benefit of the larger valves. I understand B3nn3t's aversion to carving up the heads, and I have my own concerns about effective fuel mixing, but the truth is that a lot of people have done it and its proven to be just fine. I think there's still a case to be made for a port-matched build.
One concern with both Hybrid and Port-matched, is that the intake manifolds become limiting on top power levels. For a normal driver, it's probably not a big deal, an SVT intake should be good enough to keep you happy.
Historically, there was a lot of debate about whether 3.0 cams or SVT cams were better. Both camps dug their feet in but nobody could really prove it one way or another. Today, I think SVT is the most direct path to a good running car, but 3.0 cams are very useable if you can't get all the SVT parts.
For SVT cams, use the SVT injectors and SVT PCM. This is probably the best running combination you will get out of the box, and you might even decide its good enough that you never even bother to get a tune, even though you will be leaving a little power on the table with the SVT injectors.
For the 3.0 cams, I would use a Cougar PCM and injectors. Cougar cam profiles aren't that far from the 3.0 profile so it should run okay from day one, but will be limited by injector capacity until upgraded and tuned.