The first question for the projector/screen combination is what is the ambient light in the room? Will it be installed in a room with a lot of windows/sunlight? Is the screen going on a wall with pot lights above it?
In the quotes you were provided, did they give you the EXACT projector screen model #'s? This will show the screen materials detailing the GAIN, VIEWING ANGLE, Ambient light rejection (if any), etc....
The projector spec's show it's 2400 lumens which is ok, but again it depends on the room conditions of it's being installed.
EDIT: Quick readup on screen GAIN: https://www.projectorsourcecanada.ca...EN%20GAIN.html
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