great build! I love seeing old stuff repurposed and being given new life, it’s so much better than just throwing it away and buying something new. I did something similar last year with a 4D incan Coleman (50c from a garage sale!), and it worked out really well. Not as bright as yours and no LED monitor, but it does have USB charging 
It’s soon to have a Nichia 219 swapped in, after which it’ll be pretty much perfect for what I use it for (camping and BBQs).