Okay here is the reason for the boost PCB, i accidentally blew out the boost for the 4.3 LCD. Im not sure how but it happened. Also a image of the schematic for all wishing to replicate. Will spit out 21-23v from 3.3v source happily. Meaning NO HEAT! Ran it for about a hour only, but results where great!
The only thing with this is no PWM control. That can always be added to a future revision but since this is only for a quick repair and i have a better boost board coming from OSHPark soon. Ill be sure to test it and post more info when it arrives.