I have the hard copy of the ESV study bible. And I use the ESV website to search it online too. Is there a way to incorporate it into Logos4 without having to purchase it again?
I am in the same boat as you - and I don't think what you are asking for is possible. The amount of extra work that goes into making book compatible with LOGOS (which includes Biblia.com) is worth the extra cost, at least to me.
You will need to purchase the book from Logos to use it in Logos. I think it was a worthwhile purchase.