Changing the window is very easy. Only basic skills and a screwdriver needed.
Changing the entire door and frame is also "relatively" easy provided you have the skill and patience.
Finding what you want might be more difficult.
Lou, Laura, & Freya the wonder dog
2008 GMC Sierra 3000HD Crewcab SB Allison Duramax
2019 Flagstaff 8529FLS - Pullrite 3300
HAM CALLSIGN - KC3FFW