Lower intake manifold gaskets, gt40 gasket for between the upper and lower intake, and if the throttle body and egr setup is not already bolted to the upper intake you need those gaskets to.
Don't use the front and back gaskets for the lower manifold. They ALWAYS blow out and you'll be doing the job over again.
Get high temp rtv and put a fat bead of it on the front and back...let it sit for 5 minutes or so, so it starts to thicken and then install the manifold.
^^^^^indeed. You might have to trim the stock gasket for the 70mm though. Just go to westlake to get new bolts. And I assume I will be seeing you soon. Make sure you call first im not sure if we stock the gaskets. I might have to order them.