Possible hets are just a tough sale when it comes to genes that are no longer considered high end. And possible means a gamble, and 50% possible is even more of a gamble that many won't be willing to pay a lot more for, which is why I always prefered to keep the females raise them up and prove them (which obviously increase their value if you do) and let go of the male.

To give you an idea I sold 2012 100% DH Albino Pied males at $200 last season, I kept the females but females were selling for $1000, so take into account the price drop and the fact that yours are possible hets and that will give you an idea.

You can always try to put them on sell but it will be hard.