I did a test run on the updated version and it was great. The more I was tinkering with it, the more ideas for improvements came and I really sorry that the author is blinded to Roll20 only.

If I find time someday (because inspiration and motivation is always top) I might try to give a hand here - especially the Abilities and Inventory part that in the current state is not really my cup of tea (I don't like the drag & drop for Blades, I prefer the original way of having pre-defined list).

Great work so far!