Get a Gany's End Speedy Hopper, point it at a Iron Sorting Chest. In an adjacent Iron Sorting Chest, whitelist all Ingots.

Put some Gold and Iron ingots in the speedy hopper. You will now have infinite gold, as ingots will continue to be put into the second chest forever.

I'm looking into this now, thanks for the report!

Hrmm, this is very weird, but it's not something I can fix. For some reason that mod doesn't remove the added itemstack when it adds it to an inventory. It's a very unstable mod (at least in my dev environment), so you might want to contact Gany.

This will be fixed by Gany soon.