Oh heck it's not like most of us "know" a bunch of big breeders LOL. We're just darned lucky on this forum to have a few of those breeders participate and take the time to share their collective wisdom. As well as lots of folks that have only one or two snakes but do very well with them and share their thoughts and suggestions as well. It's a great forum that way, everything from the person with one pet snake up to folks with hundreds of them (and some very expensive morphs to boot) and everyone in between.
There are a lot of racking options and suppliers. Racks can get very pricey so take your time, do the research and ask around so you get the one that would work for you from a reputable rack builder. We've got 6 balls and a boa and no racks...just a lot less flat free space than before LOL. I would sell a kidney somedays for a decent racking system but that will come in time.
There are also some rack plans online available for free if you are the handy sort and Matt (justcage) can advise and supply you with your heating needs.
~~Jo~~