User blog comment:CMDR Triton Zeal/Fer-de-Lance at a discount in horizons/@comment-1028741-20151221001724

If you have access to Shinrarta Dezhra (Founders World permit) it should still be available there with a 10% discount, as Jamesone Memorial has all the ships and modules with a discount.

All the procedurally populated shipyards changed in Horizons, so I guess your best bet until the wiki pages have been updated would be to try flying to random ports (preferably High Tech economies) in Li Yong-Rui systems and seeing if any of them have it. Or seeing of any of the other third party sites have been updated yet.