Would it be bad to mount a macbook pro upside down on a VESA tray?

I've got a smaller desk with two monitor arms -- one with a monitor (left side, different system) and one with a VESA mounted tray for my macbook pro (late 2013 15".)

I'm going to be adding a 1440p monitor from the macbook pro, but I'm short on desk space. Instead of having the laptop on the tray normally, if I lay it lid down with the laptop portion up, the laptop base could sit behind the new monitor with the screen coming out the bottom -- perfect for static applications like VSCode, iTerm2, etc.

Here's a mock up. The thicker outline represents the macbook pro screen.

Can anybody foresee any issues with this configuration?