Yeah then send it to me. I will reproduce them. I can probably get real close . Formed out of Lexan or another (like)Polycarbonate. Hell even ASB would probably do the trick
Before you try the stripper try this. Use some wax and grease remover from the auto parts store. Normally used to before painting your car. Pretty much the same as zippo lighter fluid (cheap way) to find out if it will cut it. If not then hit it with the stripper.
They do exist. Canon 821, I have one myself. I have an A14 with round port head. BUT I did buy a new old stock H72 head on ebay for $20.00. I will post pics of them. I bought this intake from a guy out of Texas or New Mexico I dont remember.