It is hard to find the ideal gold paper.

It can be quite tricky to paint on because the ink & colours do not stick well.  So you need to experiment to see what works for you.

You can make it yourself – get western gold colour (eg gouache) & paint on the paper you want to use.

You might find ready-mounted boards, though of course these are limited in size.

There are many metallic papers available online, but we  have no idea whether they would be suitable.  If you try them, let us know how you get on.