IM trapped???

[Somed00d]

Why does it have to be female?

Various reasons.
#1 Females take longer to mature so buying the female first is a good choice.
#2 If you ever have to re-home the snake a female will be very easy to sell.
#3 You can never have enough females.
#4 Females of breeding size are 2-3x more valuable than a male at breeding size (the three listed morphs at least).

Even if your not planning to breed I would still recommend a female.

IMO mojaves are the best looking of the three. : )

I may be biased but Mojave's are my favorite too.