Using something like Vanta or Drata makes life a lot easier. I've done SOC2/PCI audits in fintech where we change tools every year (meaning we reinvented the wheel every year), and I've now done it at my own startup using Drata. Auditors feel more comfortable, you'll feel more comfortable, etc. Even if you're not planning on doing it right away, just sign up and have it start tracking your progress.
It's time consuming, but not all consuming. I think I spend <2 hours a week on compliance now that we're set up.
The "fun" part was engineering ways to implement things like PHI scanning and WAF protection as cheaply as possible. There's almost always a nearly-free cron job/python script/slackbot alternative to every "mandatory" 5-6 figure SaaS subscription in the space.