Umm.. yes and no.
You will need separate breeding tanks, then grow out tanks (I prefer no less than 29gs per grow out, as you don't know how many in a spawn you will keep, etc).
Once they start to fight you will then separate the males (once in a while a female) into containers to finish growing.. most breeders use 32oz deli cups, 32oz+ mason jars, beanie containers, etc.. should be of a decent size so they can finish growing before selling. I personally have 32oz deli cups, .33g, .66g, 1g, and 1.75g containers.
Need a way to heat up every one of them - that is important. With multiple pairs of breeding, such as you are talking about, you would want to have a couple hundred of those containers.
The females can stay together until sold for the most part.. so you will want to make sure to have spare tanks, or even large 20+ gallon rubbermaide/sterillite containers to keep them in long term.. heated, lighted, etc if you don't have enough tanks to hold them all in.
See, the thing is you will need a couple different sized tanks.. one to breed in, and one to grow out in, and if needed, one to hold the ones for sale in. Unsure where you plan on breeding them and what you are going to grow them out in.. the 150g tank won't serve any purpose other than you can hold your females in that are for sale. You won't be able to breed in that tank, and I don't suggest growing them out in that tank as it takes a lot of work with cleaning multiple times a day and a 150g tank is just too large to clean properly and to feed in properly.
But it would make for a great female holding tank.
You will also need multiple containers/tanks to hold all your breeding fish in as well.. lots of money, space and time is put into breeding just one pair of bettas... multiples like you are wanting will need quite a bit.
As for your selling plans.. make sure you know how/where to sell.. know veiltails are very hard to get rid of, know when/how to mix fin types, know the standards for the different fin types (as you may breed X fin type, but they aren't the standard so you won't be able to sell them for the prices others go for, etc)... temperament plays no part in sales.. as these fish are all generally the same. Color will depend on how it is colored - know when irids are welcomed and not, know whether or not red wash is good, etc etc..