Can confirm. It closes perfectly after soldering in cable, and the USB hub doesn't interfere at all with the G81-1800 case.
The cable, you just need to reroute using the upper space in the case.
However, I did mine awhile back and was using the first/early generation of Leeku PCB, unlike the new ones ppl are using now.
This one uses the Beast plate, and I had to dremel the case to fit the plate though.