Thank you for the feedback!
I can definitely agree with most of this.
For the next version I already included a way to heal more quickly and some starting items.
Might include a way to get relief "on command" as well!
Though I am not sure what you mean by checking if the price of the trades was paid. The game should already test if the player is able to pay the price and not even open the deal if they would be unable to do so.