RBLNR:
I thought I emailed you detailed instructions on complete step by step installation, including factory power supply metal box removal, over @ Audio Circles.
I simply removed the factory power supply metal box housing. The new supply doesnt fit in it properly. There are 4 small screws that need to be removed from the under side of the G68. Entire box will come right out.
For those that dont know, the metal box has the stand offs to secure the factory power supply. Then its just a matter of installing a couple new standoffs which Anthony can supply.
I also did add a ground wire to Anthony's power supply to connect the chassis & the power supply (same as was done by the factory). Power supply chassis ground connection is located near the 2-pin connector side of the power supply. Anthony can install this ground wire connector for you. 6" wire with ring terminal will do it.
Again I simply removed this metal power supply box. No need to bend it up. That way can keep all original factory parts (metal box, rear plate, IEC/filter combo, & wiring) for resale.