Well, yellow anaconda/Boa constrictor hybrids exist, as well as a Colombian rainbow boa/yellow anaconda hybrid also exists. I don't see why it wouldn't work. It would just be a similar equation without the yellow anaconda part lol

As for if this is going to be done or has been done, just don't mis-market them. The last thing I want to see is carpet pythons 2: electric boogaloo where pure specimens are rare as hell. It's one thing to breed distant hybrids - you can tell those apart from pure specimens easily. But it's a different ball game trying to tell apart sub species integrades, or even closely related species. (Bredl/carpet hybrids, and blood/short tailed hybrids anyone?) Hybrids like those are hard to identify even in F1 generations.