The TC is 'based on' Dana 18. The PTO related sections INSiDE the case were removed decades ago and that space taken up by other parts. So opening that plate will reveal a bearing and other assets unrelated to PTO. ie, you can't do any bolt on jobs. TC itself has to be redesigned back to original D18 form for that. Also, there's that fuel tank in the way of any conventional PTO shaft.
MANA is said to be working to bring back the PTO.