ROR,
Only the end plates are 3/8 and each one has two large holes in them 
- the rest is .09 sheet. The tubes that keep the air close to the cores is about .08 wall and each of them have big slots machined into them.
Actually it doesn't weigh much more than the hunk of casting I milled off.
Also, if you look closely, you'll see that the turbo discharge is only about .09" from the intake and once I clamp a silicone boot in between the two, it's pretty much one hunk - intake/exhaust - 16 bolts hold both manifolds - that should probably do it.
you will NEED brackets that secure the turbo/mani to the block, and i would go from the intake mani, to the valve cover as well..
my turbo header just cracked, and i have braces going to the block..
Based on R.O.R-2.0's suggestion, I built a bracket to hold the Laminova Inter-cooler and thought I'd share a few photos. . .
The steel bracket picks up three of the four studs on the turbo and goes to the block. I even formed up a heat shield as well which is tacked to the bracket. I know the TIG welding is sub-par but at least I got it done. Just ordered a 2" silicone hose and two t-clamps. That will hold the weight on the front of the inter-cooler. The bracket should hold the rest
Now to clean the shop till I can eat off the floor and begin the engine assembly - finally
There's metal shavings, tools, and dust everywhere - I've entered the "can't find anything" zone. Time to get it back to clean and organized.
BTW, I decided not to do the water-meth injection - just too much foo-foo.