I don't think all axanthics are compatible, so what yours is would play a significant role.

A bumblebee would be in the $500-$700 range and to add het axanthic anything would bring it close to $2,000 I would assume.

If you want to prove that 50% female axanthic you have I would first find out which axanthic it was and get a 100% male of that type and avoid the cost of combos.

The female normal you have I would just keep her fed and keep her comfortable incase you want to breed her later.

With what I have described you have five slots and three snakes. Think carefully about what two snakes you want in the other two slots.