I bought a pair of apisto labelled "macmasteri double red" from absolutely fish about 6 months ago. With some research based on their markings I found out they are likely a mix of macmasteri and viejita.
Regardless they are very healthy, colorful and have done really well. I have 9 juvie offspring from them that are an 1-2 inches and growing. Every time I visit the store they have cacatuoides but it's nice to see they carry some other species. They only sell pairs, and they usually run $50. I'm glad I spent the money on a pair, everywhere I see apisto they only sell the males being that they are more colorful.