Been thinking about making this one.
Given shirt type and pants, the Dagobah Luke is probably a good base to start with repaint.
Need help with the belt (and all those big pouches) and the shaggy hair version. I'm guessing it's the ROTJ lightsaber given story timeline.
For the head, the Rebellion Comic Packs Luke may be decent. It has longish/shaggy hair and a good look. Need to find a more brown (less blonde) variation, or paint it.