Take the # of clutches you think you can get and multiply by 5 - can you care for those? Then realize that realistically you are going to get half that number of clutches/babies you aim for, and they won't all hatch at the same time.
Have you sold any snakes before? The sales cycle is exhausting and there are a lot of tire kickers and deal shoppers out there who will run you through cycles only to tell you they don't have any money. If that's not something you have time and energy for I would encourage you to limit the clutches.
I personally limit my clutches for this exact reason. I love hatching babies but hate selling them. What I do is try to find local shops and keepers who are interested to buy the babies wholesale. I sell all of my normals and single gene or lower pricetag animals to them for wholesale prices. The rest I keep for a few local expos and will post an ad here and there on classifieds in between the expos. I don't have a problem keeping them around for a while but that's because I try not to have more than a dozen hatchlings at once. All up to your own time, energy, financial limitations.
One last thing I would say sort of up on a soap box. Please do not pair up basic snakes or low gene pairings for common dom/codom genes. The market is totally saturated and you're barely going to make your money back on them if you're lucky. Try to limit the normal and basic babies as best you can. I can't tell you not to pair a spider and a pastel to try for bumble bees, but I can tell you that if you do and you get viable eggs you will have sunk more time and money into producing them than it will be worth.
Good luck!