Just wondering if a bonnet from the TS will fit the TE. Duco on my TE is destroyed and have access to same colour TS for parts.

No, it will not fit.

I doubt if any SECOND gen body parts would fit on a THIRD gen Magna.

The front bumpers almost fit. Give it a try if you want, but I doubt the bonnet will.

Definitely won't. I had the same idea but the measurements were way out from my mates tr so I never bothered trying