I have an old (1972) Dayton chainsaw sold by W.W. Grainger. (model 2Z461) The engine was manufactured by Poulan. I am looking for the ignition group with Poulan PN 530-003995. The original PN from the Dayton parts list was 3995. These numbers come back as obsolete. The engine is 3.6 cu in. What I really need are the points and condenser. Can anyone help?