I don't know what any one else would do, but my advice is this.

In your example I would advertise the reptiles in question as 66% chance of het for albino. Wich is what they will be.

As for price, you should set it higher than that of a normal and lower than that of a 100% het. Given that anyone who is buying one of the 66% chance hets is taking a gamble the price should be less than half of the price of a 100% het. At least that is what I think.

I also think that you should be able to charge at least double the price of a norm.

In your example I would try to get at least $750 for them.

If any one out there has a different way to calculate prices I hope they let you know.

How you set your prices is, in the end, up to you.

Good luck in your breeding.