Looks like tfw2005 member deliciouspeter had the same idea and beat me to it - a repainted KO oversized Sentinel Prime with a voyager Megatron head.
I bought the KO along with some Swindles to make Lio Kaiser and got distracted by that.
For what it's worth here's my version
https://i.imgur.com/99sbWWd.jpg
https://i.imgur.com/IUzZsUR.jpg
https://i.imgur.com/qPScbBO.jpg
https://i.imgur.com/T7ojrng.jpg
