Have you tried coconut flour instead of almond flour? It’s a lot cheaper, you need to use less, and the finished product will be lower in net carbs.
But, trying a new flour when you’re going to do a massive amount of baking probably isn’t a good idea. However, changing brands of almond flour can yield different results as well.
Be sure to check out VitaCost. I recently got a 3# bag of Erythritol for $11.89 and then got a further 30% off on it. They often offer 10%, 15%, and 20% off. Yesterday’s Cyber week offer was 20% off. Today’s is 15%.
Their Almond flour is $7.18/#. So if you got 20% off that, it would be under $6/#.
The Coconut flour on Vitacost is $3.10/#, even less with the discount. And you only need to use a third or a fourth as much coconut flour as almond flour. But you will need more eggs.