You put there quite a lot of work and interesting features.

One of the reasons why I like dlt is because I can do everything via code, which makes things more maintanable, for me. I think this could be a starting point for a dlt SaSS, but there are a lot of things to consider and connectors change all the time. It's something I thinking about a lot... :)

I think you will get more feedback in the dlt slack/community.