I'm making a studio out of my 16'x8.5'x9' (LxWxH) room and originally wanted to use seamless paper but oddly they come in 4.5' and 9' width. The 4.5' seems tight for a full body shot and I can't fit a 9'. So I been thinking about ideas. 1. Pick 4.5' seamless paper and use Photoshop to create extra negative space 2. Get four 4x8 white panel board (two on ground, two on wall) 3. Saw off 9' Would the panel board be too reflective for high key?