I think your over doing it on supplements but i’m no expert. I’m pretty sure bentonite clay is not essential if not detrimental
I would cut back on non essential supplements and use the money to get hemp seeds instead of sunflower seeds.
Also i have a buckwheat cracker recipe:
He also recommends some you can buy called Amisa ingredients:
Wholemeal buckwheat flour: 98.5%, sea salt: 1.5%
Organic and batch tested to be gluten free.
But if they all those don’t work out as you thought they would you can get the machine i guess. D: