So I did some research on the whole thing and apparently the Bomber 58 wont fit due to headtube length/external headset.
So instead I'll go for the Z1 in 170mm. I run a 180mm RS Totem atm, so that should offset the 1.5" height gain in the front a little.
I'll run a test version of this with a borrowed 27,5 and go for something nice if I like it, RF Atlas or Spank Vibro most likely.