I would say the hardest thing is to find someone that is able to do it... The biggest problems are geo blocking and that it's a commercial service; not every developer would like to pay money for something he/she never going to use after development, and pay again when maintenance is needed. I think our hope for a US site at the moment is that only minor configuration changes of the UK and DE sites is enough to get it working.Yeah I saw the DE version, So is it just hard or impossible?
I had asked a while ago https://forum.team-mediaportal.com/threads/amazon-prime-plugin.124446/
and it got out of hand