As we have never done a signature campaign before we looked at the LIR thread and used it as a guide. Relax, there is no scam involved at all. We are currently
having our own designs created.
If you have never done a signature campaign why you don't hire a campaign manager , also you can make a signature design contest to get new and unique signature for your campaign , it is better than copying others signatures , I see you have good payment rates , so you have enough balance to buy a signature design and hire a manager or escrow.