Alienized, on 16 July 2016 - 11:48 PM, said:
also, one of my favourite mechs, the cestus, was build 2766 and has 3 variants.
one mech i really would love to see is the devastator...

The Cestus is an interesting mech that could technically be available in the current timeline because ComStar had some pre-clan invasion according to the MUL I linked in the OP.
The thing that needs to be understood is that mechs went extinct or were secreted away by ComStar, etc during the Succession wars. That means the production date isn't the primary decider on a mechs availability. For example the Nightstar doesn't go back into production until 3057 & was thought to be extinct before that, which it was outside of CS.
As far as the Devastator goes, the Nightstar would be superior. A comparison of the two could be fun though.