As others have pointed out almost surely not "red" axanthic as the hets are visible so no possible het percentage. You posted the percentages expected for each egg but once the egg hatches you know if you hit or not by looking at co-dominant mutations.

However, I would try to get ahold of the breeder and find out which recessive axanthic line he was talking about. Also, confirm that both parents where indeed 100% het (where there any visual homozygous axanthics in the clutch?). Because there are at least 3 (four if you count the new black axanthic) incompatible recessive axanthic lines you would need to know which to breed them to. For any of those (with the possible exception of black axanthic) you could pick up a 100% het male of the same line for very little and at least have the chance of producing some axanthic babies.