I hope this is the last iteration for these this time!
4070 4 x 2 Input XOR Gate, single part - v3.fzpz (11.3 KB)
4070 4 x 2 Input XOR Gate, multi-part - v3.fzpz (11.6 KB)
As you can see, I have doubled the size of the multi-part part. I have also reworked all the parts to make them more consistent in size and layout. As always, full set is on github.

