Print as oriented and you won't need any supports and it will fit (diagonally) on the print bed.
I sliced this with Simplify3D using variable infill densities: 10% for the main rod and 30% for the arms. I also printed it with a 1.6mm shell for maximum strength. PETG is strongly recommended.
You're going to have to partially remove the print bed to install this. The side arms slide into the print bed carriage frame and are held in place with the bed level screws.