Buy avocado oil online. Problem solved.
Just use a regular egg yolk. You're not going to notice any difference in nutrition using one CAFO egg. I go through dozens of mediocre grade eggs a month and I'm still alive. The benefits of pastured eggs vs a standard cage free egg that costs $2/dozen aren't much anyway AFAIK. Yes there's more omega 3, but the omega 3 quantity is low in pastured eggs, too. Just eat an extra serving of salmon during the week and call it a day.
Don't put your trust in anyone on this forum, including me. You are the key to your own success.