I’d be a bit hesitant about using the thin gaskets without the baffle plate as it might cause conflict between the top of the driveshaft and the crankshaft. There isn’t much wiggle room in there when assembled.
I’ve cut base gaskets using gasket paper from my auto supply. It comes in bulk and various thicknesses. The stuff I’ve used might have been around 0.030″ thick or thicker. Can’t remember. As long as it’s close to original it will work.
