It won't work. This doesn't look like it's the same form factor as the Pi. (Inside the pi-top are mounting points that align with the pi's form factor mounting

It won't work. This doesn't look like it's the same form factor as the Pi. (Inside the pi-top are mounting points that align with the pi's form factor mounting holes.) Also the pi-top's power switch and supply go through the Pi's GPIO pins so those would need to be a match as well.