Large product shoot need more white on floor and background

[BIFANO]

I make drum sets and I need to shoot this for a 3d spin so I am going to take about 72 photos at different angles. I am pretty sure I don't want to edit 72 files in photoshop so I need to get this right.

I am using a Nikon D600 with 2 front florescent lights in a soft box at 45 degree angles. 2 Godox TT600 flash to cover backdrop. I have a overhead soft-box with florescent fixture.

My Camera settings are ISO 200 35mm F11 1/60 sec.

I need to get the right and left floor to go all white.

I probably will answer this myself but do I just need 2 more flash units to cover those areas?

The first photo has the overhead light on and the second does not.