I just saw this (thanks for sending in the link) some WIP rules from Forgeworld for the Knight Questoris Porphyrion. They look a little rough atm and a little hard to read.
Even though they were posted on Spikey Bits Facebook, you can only seem if you are a member of that group. So best place to see the rules are on the Spikey Bits blog.
The pic above are from the Recalcitrantdaze from the Horus Heresy Weekender. We had featured them previously. The center model is the Questoris Porphyrion.
to see the image head on over to Spikey Bits.
via Troy Caduff on Spikey Bits