Quote: When I got it the front trigger had been converted to a single set arrangement
Also the right lock is missing its intercepting sear and spring

A set trigger will not work with an intercepting sear. The short kick a set trigger applies to release the primary sear is insufficient to release the secondary one. Alas, the purpose of the secondary sear is intercepting the hammer to keep the gun from firing if the primary sear is accidentially released by a short blow.