Restricted category UH-1H can only be the famous ZU 205 flying pax from the African aviation forum.
Good old South African aviation authorities saw fit to allow paying public access to old warbirds including a UH-1H in Cape Town.
Now then the law as written gives special dispensations and different rules about AD's etc and also allows other non factory mods to be done which are a considerable cost saver. You are also allowed to overhaul your own components.
Additionally there are other suppliers who have legal STC'd mods which peeve Bell off as they are approved but are a quarter of the price.
I believe a restriced 205 under these conditions can cost less than a 206!!!!