[Dieselwrencher]

Nice score and sweet project Mike. I have a couple of ideas for you since I see you're going the different and modified look here. On the hood, the 73-80 has a more square body line in the center of it where as the 81-87 comes up to a point. You were saying you wanted to retain the cowl panel seperate from the hood. Now, when you cut the 2 hoods to do this the sheet metal won't want to line up. But, I think you could weld the 2 hoods together and get a steel cowl scoop and then use it as a seam blocker and add looks.

On the rear seat: Place the lower cusion smack on the floor even with your new floor hump. Use the top of the floor hump as half of the lower portion of the seat frame and then add a back to it. This way you might try to still keep it as low as you can without kiddos wacking their heads as much.