In my opinion it's less expensive to save up and buy those "more expensive" morphs than try to breed especially since you bought all single gene animals.
The double or even tripple genes BPs aren't even that expensive anymore so if you planned things out, you could've had a much better group for breeding.
Anyways, that's just my opinion. If you're happy with your purchase then that's great! However, patience and planning goes a long way in this hobby. There's so many cheap snakes out there it's unbelievable. You can't buy them all.