This.
yeah i am kinda interested in window curtains too, but mostly because i dream of turning my cruiser into a self-contained camping rig where i can come home from work on a friday, load up a 12v fridge (maybe on a rear cargo rack) and put some food in it, and head on up to the hills to (maybe illegally) boondock camp wherever i happen to pull over.
sometimes you just want to get away you know?
But i also know my way around a sewing machine and know that i could make elastic cord curtains that attach to snaps screwed to the plastic interior panels in a weekend for maybe $40.
(No i won't make them for you. But my eldest sister is a seamstress for hire.)