But for a team of 3 people, you can do much better than $5k just selling your time in consulting.
It's not clear how you'll get from $5k/mo (nice side-job income) to $50k/mo (Good bootstrapping income for team of 3) to $500k/mo (ok, now you have a business that scales).
I'm not being critical here -- It's just that SaaS math has me scratching my head wondering if all that work for all those customers with such small amounts to show for it is worth it.
Would you rather service 200 people for a total of $5k a month with 3 bodies to support or one solid consulting customer @ $5k+/month with just yourself to support?
I'd imagine that you'd want more revenue so you can have a business and not just lifestyle income to support one person. Going from 0 to $5k is one thing -- the advice here is good for that. But getting from $5k to $50k, where you need to be to have sustainable business for 3 people, will require much more substantial effort that's not clear you can achieve with these methods. Indeed, it is not even clear what your margins are at the $5k/mo revenue point and whether that will even be sustainable given the amount you'll need to spend on Customer Acquisition, Customer Support, and slaying the Customer Churn demons to retain your necessary high monthly subscription rates. This is where most SaaS companies die -- trying to achieve this necessary transition.