honestly, if you are bootstrapping anything, you don't need saas now for the start

SaaS are swiss-army knife tools and you don't need all of this.

do you want to have a contact form on your site? Don't but the whole WP plugin for forms, ask AI for tiny, well-aligned plugin which will display form fields and process the input.

Do you need to A/B test your landing page? Just ask for another plugin which will switch page versions and track impressions.

No need for Hubspot when you have google sheets + AI-made plugin for this.