You talking about the sun blocking screens, Correct?
I couldnt find any that fit the full windsheild so I bought 2 of the biggest ones I came across and cut the second to overlap the full sheet. then duct taped it so it would fold into one sheet and easily be stored behind the sleeper wall and cabinet..Duct tape lasted maybe a year and half..Used the left over peices up top in the sleeper windows to help the A/C in the heat of summer.
For the side windows I made some preety lil print curtains that slip under the door seal but dont use those to often,,more so when I park the truck at home for any length of time. For the door curtain I took the time to sew magnets in the printed cloth thinking I would just toss em on the door and it would stick in place..They worked great when I tested/tossed them on my wifes car as I walked out of the house..But after trying to hang em inside the truck several times it Dawned on me that magnets are completly useless on a aluminum door panel.