I'm partially there.

Fortunately the donor machine was basically the case and the mainboard so it was pretty easy to remove.

On the customer's original computer I have the heat sink cover off, the plastic panel to the side and about 1/2 of the screws needed to remove the heat sinks from the processors. Unfortunately I need to buy an extension to use my existing socket bits or a long handled allen wrench.

Shall I take pictures once the heat sinks are off?

Not bad for my first G5 repair....