I would get the Mojave pair and some normal girls, that way you could raise up the Mojave male for a year and breed him to some normal girls while you are waiting for the female to grow up... then you could sell the babies and buy a visual piebald female... start raising her up...
then in year 2 you could breed the Mojave to the normal girls and the mojave female make more mojaves and a BEL keep a lucy and sell one if you get 2 and sell the extra mojave babies again and buy a male piebald...
Raise him up for a year... repeat with Mojave as before breed Piebald to Piebald make a bunch of visual girls... keep them then breed BEL to the adult piebald female make ALL Mojave Het Pieblads... Keep 2 boys ( 1 for backup) and a girl (to try for the BEL x Piebald)
ETC....
In this scenario you would be making snake money right away instead of waiting to raise up het piebalds then praying you actually get a visual then spending more of YOUR money on Mojaves...
Use snake money to buy snakes....
This is how i m able to do this for a living...
You have to think ahead