I just published an episode of my podcast:
https://bootstrapped.fm/151-advice-on-validating-and-building-a-bootstrapped-b2b-saas/
In the episode I answered several questions from a loyal listener who wants advice on building a B2B SaaS similar in scope and style to my product.
Perhaps it is useful to anyone thinking of starting a B2B SaaS but too anxious to get started.