I make quite a few gaskets too.
But very rarely will I make one instead of buying a ready made when available. I've found that more often than not buying one is cheaper, faster, and better than making one.
Sometimes it is cheaper to make them though, working on a small Hercules two cylinder lately and the gasket place wanted a few hundred for a kit, that's ridiculous. A kit for one of my Detroits is about $85 and has a whole bunch and several big ones.

Grigg


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-