I'm making a basement "theater" to watch movies and sports, no gaming. The projector will be ceiling mounted 10-12 feet from the screen. Seating will be about 10 feet from the screen. Screen size will be a max of 120" diagonal, depending on the projector. With the lights out the room is absolutely pitch black. I will use a Roku ultra (HDMI) to stream Netflix, Amazon Prime, Disney +, Google Play, and Xfinity. I'm looking for a value projector, something used on eBay. I've read about how nice the JVC projectors are, but there are so many models my head starts spinning. I'm looking into spend under $1,000 on the projector, 1080p is fine with me (4k likely not in my range). I'm looking for the best picture quality, best blacks, and no motion blur I can get in my price range. I'm also sensitive to the DLP rainbow effect. I feel like I could get a nicer used unit for the same price vs a new one (maybe I'm wrong). It will probably see 5 hours of use per week on average. What used projector should I be looking for? I was looking at a JVC DLA-HD350 and DLA-X500R on eBay so far. Thanks for any help.