Marlin, if I tell you how, are you going to mill it all out of billet titanium? LOL!
You aren't going to allow WOOD SAW DUST in your shop are you? 
The panels are tiered because each one needs to be to be cut around the pulleys as you step them up.
The only way I can explain that is to disassemble the thing step by step to show you what to do! OH NO! I'm trying to get the car TOGETHER, not apart! 
The largest culprit is the water pump projection. I actually toyed with the idea of shortening the shaft for the pump. There what I did was have a custom pulley made which pushed back the groove as close to the pump housing as possible.
Shortening the pump shaft and pushing the pulley way back is still a good idea since the face of that pulley is about 1/4" under that plastic plug cap that you see. So the cap is the elbow saver.
Ford had reason to build the water pump that way and Detomaso was forbidden to "open or modify" the engine like that but there is no practical reason for the pump shaft to be that long in the Pantera.
You would have to remove the drive flange, shorten the shaft and repress the flange back on, then have a custom pulley made BUT you likely could eliminate that outermost "elbow pad"
There should be a "special Pantera water pump" for that reason.
The other panels are hollowed out to fit around the pulleys and belts.
What is interesting is that the plywood actually deadens the engine sounds and adds heat insulation to the cabin where none ever existed from the factory.
It also makes front engine access much easier.
Let me see how much interest there is in this and maybe if I can find that bottle of Tequilla and it will help me convince myself to disassemble it and take pictures.
It is very effective in civilizing the passenger seat space and while I agree that it isn't as aesthetically pleasing as I would like, it absolutely does work for sure.
I think it is a very good solution particularly because it is low tech and as a result not a very expensive project to do. There is nothing particularly difficlt to find with the exception of the custom water pump pulley. That was not outrageously expensive either. Maybe $100 and it came in about a week.
I did relocate the A/C pushing the mount closer to the engine, but that was simple and not rocket science at all.
Let's see, tequila, where are you? "Bottle of wine, fruit of the vine, are you gonna' let me get sober?" See, I'm starting already! Yikes. You guyz!