I agree, it would no longer be a low-PUFA diet.
Discussion
This strictness and quality of this low-PUFA diet makes it evident why eggs could be $24/dozen. You get what you pay for.
Yes. It's hard and expensive.
TBH tallow might be the most affordable fat to use.
38lb at 180$
https://www.amazon.com/Rendered-Additives-Skincare-Non-GMO-Gluten-free/dp/B0F79NVL39