I think it would be difficult to get one on loan since many people use one male to several females, so to borrow a breeder male you would have to find someone who isn't breeding that snake to other females. However, if you can find a local breeder you may be able to loan out your female and have her paired up for several weeks, maybe added to their rotation, then bring her home and hope for the best.
Another option would be to buy a male, breed him for a couple months, then sell him again. I've actually considered this myself, you could bring in a whole bunch of fancy males and turn around and sell them and get most or all of your money back. Then you'd have all the offspring and could hold back a male or two.
Another option would be to breed your het pied to a pied that has one or more genes, something like a pinstripe pied, or maybe a pastel spider pied, or even an albino pied. Then you would get more of a variety of babies that would all be pied or het for pied, or even double het pied / albino, you would get pinstripes, spiders, and pastels all het for pied. Easier to sell than straight normal het for pied. Or even better, you could pair up with a super pastel pied, then you'd get at least all pastels het for pied or pastel pieds.
What state are you in? How big is your female and how old, how much does she weigh?
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