There are in fact no items that replicate BR’s smokes or handsaw, but there is an existing healing pill in the game, at round #4, which is reachable by having the AI and yourself take around the same amount of damage the whole game, leaving both of you dangerously close to death.
As for the tolerance mechanic and the changes in how the danger factor is even administered, I would say it does make it quite a novel experience when compared to BR, despite the similar art style (without considering the animation work which is quite different).