A: 1) with unlimited site exports on self hosting, we can add unlimited custom domains?...or only we can add custom domains with respective to licence tier even if we self host
- There are no limits applied when self hosting. The way we look at it here is: We're no longer paying for hosting if you're self hosting, so if it costs us nothing it should not cost you anything 😁.

2)Can we resell exported site templates in any marketplace
- Yes, we just launched the marketplace, you can publish templates there and you can also create "template kits" or sites that for Webstudio users to purchase your templates. There's a massive demand for this at the moment within the community (as in, massive demand for more templates).