Hoe's before browe's!!
Your too limited on males to do much with the females you have. For $1200 you could get a nice sized breeder pastel for $500 and maybe a subadult Mojave/Lesser/Butter girl with the difference.
This gives you a year to decide on what morph males you want.... with your nice single gene girls gaining weight, prices should be dropping on some nice double gene males for you to consider.