so after a few plays I say that the difficulty rating (based on zachtronics solitaire collection) would be ♠♠♤♤♤ (2/5) like cluj solitaire (which actually was part of the inspiration for this)
though the difficulty mostly comes from finding unexpected manuevers that will let you escape otherwise seemingly impossible situations and avoiding getting stuck so when it comes to just racking the win count up it would be ♠♤♤♤♤ (1/5)