got the time to learn Octane renderer for 3dsMax, so far it seems I am going to shift from mentalray and adapt to GPU rendering.
I like Octane despite the poor documentation and tutorials for max (more tutorials for Cinema 4D).
I modeled this mech using #Andrew Averkin (https://www.artstation.com/averkin) kit bashing. https://gumroad.com/l/HTJJk
All I need right now a new awesome fast PC to test Octane further more :)