The shop is 40'x50' with a scissor trussed ceiling 10' at the walls and 17' at the peak. Walls are flat white and ceiling is white metal roofing. I plan on four rows of lighting placed at approximately 11' height. The desired work surface lighting will be 100ftcd. I'm assuming I need 200,000 total or 50,000 per row. 4 light fixtures per row spaced at 7.8' and 12,500 lumens should get provide even distribution. I'm willing to invest in quality lighting so the Lowes, Home Depot and Menards options are off the table. Should I be looking at ufo, square or rectangular fixtures and what good brands?