I will see if I can find a link on tying that whole fiador setup for you, I haven't tied one in years, couldn't even begin to tell you how! LOL
On the second pic, move your measurement to the inside of the nose band, you want enough room to tie your reins on and have some drop,release. I am on my phone but the reins look like they are attached by half hitches??? Not sure though, might be easier to tie them on like a mecate setup.
The bottom pic, both ends have a turk heads knot tied that has been melted. I will see if I can find a link on how to tie that one too. It will probably be later today unfortunately, I have to get my expense reports done today...boring...
Hope that helps :)