I received an 8x10 camera with an old lens - a Goerz Extra-Rapid_lynkeioskop N6.

There is no diaphragm with the lens, but there is a slit where I suppose you can put a card in. Is this how it works? If so, where can you find these "cards", can one make them?

There is no lens board to attach the lens to the camera. I think the thread on the lens is M67/1. Can one find a lens board or will I have to make one - a quasi impossible task for a clutz like me

For a shutter, I suppose I will have to use a lens cap as in the old days..

I would appreciate any help with these matters....
Thanks!

Emile