You will be at the bottom of the "game" so to speak as a new breeder, so I would go with what you like. Who knows what will be hot in the basic 2 gene combos starting at your price range for ingredients. Hot is a VERY moving target in this market. There are a lot of options in your price range. IMO Enchi should be one of them, and whatever else you like after that.
Look HARD at your budget. Food and upkeep are expensive, as is getting the proper housing. Also be prepared for vet bills. MANY folks are very poorly prepared for some or all of that.
I suggest:
Male:
Lesser
Females (pick 2 or 4):
Enchi
Mojave
Yellowbelly
Fire
That would make a hot breeding group for not a lot of cash. But, do not skimp on quality. If it means getting one less snake to afford to make your others higher quality stock, then so be it.