Nice... My pleasure...
Suggestion... Raise that tree up to the top of that doorway... (80"} And move that cleat up about 16" from the pulley... You won't have to bend over as much to engage, it should be easier to engage and may be a bit safer to use...
You could just add wood to the bottom of the tree or make another if you choose... I don't know if I would trust those easy clamps so much... Might wanna use C clamps...