This is incredibly detailed feedback! Thank you!
There was a great deal we did end up having to leave on the cutting room floor... UI interaction with keyboard being one of those.
We did test at 5 minutes but it basically boiled down to not shopping at all... I think there needs to be some balancing around the shop (maybe it's not after every fight?) since if you go all in on buying for a build you barely can win... but being frugal turns the game into an easy mode...