making a dash from scratch, very cool.you can make it whatever you want.I`ll assume you have a grinder and a decent welder right?ok, take some measurements and go buy yourself some steel or aluminum.you can build a good metal brake with some green treated 4x4`s and line it with 1/4 inch flat stock iron, use nice big clamps to hold it in between the two.the nice thing is that you can make the 4x4 rounded with a saw, and then when you fold it over,it rolls a nice rounded lip, or whatever shape you put into the metal.make sure you anneal the metal with a torch to make it more pliable first, and then give it a slight overbend and bring it back into position,or take your tape measure and spend a day at the salvage yard,find any dash you like and make it fit.hope this helps.