As said, I have no troubles, I'm not trying to fix anything. A .040" paper gasket with no coating/finish to it at all does not, to me, seem a reasonable gasket to seal almost 6" of flange between mounting studs.
So what are you lookin for? You have the phenolic spacer. That's the insulator. So, all you really need are two sealing gaskets, right? What difference does it make that they are thin as long as they seal? You certainly don't need the thick ones, unless the intake, spacer or carburetor base plate is not true. That phenolic spacer is an insulating mug.