You probably don't want to pay the $500+ I'd ask for even the simpler ones.
Jokes aside making these need a lot of time work and patience. I'd really hate to re-make them. (I'm making a 2nd build of my Skyrim dragon and its SLOW) So basically they are not for sale. But the templates are available for free, so you can take a shot on building them.
Aww, but as a fan. It would be worth it, like seriously worth it. Now that you have mentioned that it isn't for sale. Asking wouldn't cost me anyways so how did were you able to make this? Used special equipment? Materials?r
You don't need anything special, they are made out of plain 180gsm paper and some glue
You will need at least 7 things to create them: -scissors/paper knife -tweezers -some decent glue -a few A4 sheets of 150-180 gsm paper (you can use photo paper but its a little harder to work with that) -a decent inkjet printer (laser works too but the paint tends to crack on fold lines in my experience) -the templates (all DL-able for free) -lots of time And that's about it