Regarding paper gaskets under pneumatics, I am not so sure
I would recommend that.  Not long ago, I assisted a friend to
obtain a fully restored Ampico.  Everything appeared to be very
well restored.  After a few days, pneumatics began to separate from
the stack.  Someone had carefully made paper gaskets.

I had to remove the stack, remove the remains of the paper gaskets
and re-glue the pneumatics in place without the gaskets.  Perhaps the
problem was the type and thickness of the gaskets? I am now retired
from the restoration business, but I enjoy helping others with
problems.

Bruce Clark