Nearly bowed out of this one, but it seems now you do care enough to put your horses welfare above riding, so i am back.
Sorry bucky but a couple of things I disagree with in what you said...
top red line is about where break over should be, or where the hoof should stop touching the ground.
That line is quite a way forward of the breakover point. Highly recommend you go study all the stuff on lamenessprevention.org. Then study it all again. I find with studying, if you take notes, write out for yourself the important principles & guidelines, they sink in far better than just reading them... Then you should understand enough of the whys & wherefores to 'map' the foot reasonably accurately. *That said, going off photos, as you said bucky, should only be taken as a rough idea regardless.
So instead of your knees I kneeled down on one knee and placed the hoof on my leg perpendicular.
Esp with a 'difficult' horse, I would not at all advise to do it on your knees, or rest a foot on your knee. Too dangerous. It's harder on your back, but stay on your feet, so you can get out of the way fast, if needed. Keep your body in contact with the horse, so you can feel his little signs of niggling. Bit dont lean into the horse either, but support yourself so you wont lose balance if he moves in a hurry. If you need to put a hoof against your leg, do it in such a way it will brush off & you're likely only to get bruised if he stomps down, kicks away or such.
TELL him that's what you need done, YOU are his employer, YOU are paying the person, GIVE him the instructions.
Yes, while many farriers somehow disagree with this concept, the owner is the employer, farrier the employee.
And in so saying, to some degree at least, they should do as the owner asks. BUT...
Firstly, telling a pro how to 'suck eggs' is not likely to go down well. Depending how you put it, you could find yourself without any farrier. He may feel you're too rude & unreasonable to work for. And farriers talk to each other, so others may be unwilling after that too. Especially if you presume you shouldn't pay him for the job he's done.
Secondly, especially as a novice to the job yourself OP, if the farrier did take your specific orders, despite feeling it was the wrong thing to do, I believe that would be very wrong of him. It would be like me employing a builder because I didn't know about building & then telling him I want him to use less supports, thinner timber etc. If he did this against his better judgement and my house fell down, that would be his fault too, as the professional who did a shoddy job.
So... I think a better approach would be to have a conversation
with him about what you want & why, and ASK if he will do those things. He can explain what he thinks of your specifics, why he will or won't do them, then you can decide whether to LET HIM DO HIS JOB or not.