Have sold the scope to pay bills, so now selling these:
Baader Rowe Coma corrector and Off Axis Guider combo.
Large backfocus requires Moonlight or Feathertouch focuser, standard chinese focusers have just enough flex to throw out collimation.
The items are a few weeks old and mint condition.
Cost me $407 to get them here, sell for $300 plus postage.