Hi Everyone, it's been quite a while since I have updated this thread, but the swap was successful!
Continuing on from earlier...
The 4AGE just before removal, nothing fancy

Unfortuneately I didn't take photos for most of the removal process, but, here's the engine and transmission coming out the bottom of the car!

Second time removing the engine from a car, didn't take as long as removing the engine and transmission from the Celica!
Speed sensor from the C52 dropped straight in.

The C60 shares the same bolt pattern and mounting points as the c52, so all 3 mounts were a direct bolt on swap.

Pictured here is the passenger side mount

The C52's shifter forks were also transferred onto the C60, so the C52's shifter cable bracket could be used without much modification. Another alteration which was made to the C60 was flipping the selector shaft components upside down, which was a fairly simple job. Unfortunately I don't have any pictures of this process, but hopefully I can explain it with the image below. (Ignore the labels)

The two components with the black studs in them were essentially flipped so they faced up. This is so the shift pattern isn't upside down.