Need New Flexplate. Pull Motor Out?

[Branman1971]

I need to swap my flexplate in my 350sb/TH350 combo. I am considering pulling the entire motor and tranny and going through them. Not rebuild, but clean them up real good and repaint the block, new motormounts, new valve cover gaskets, tranny pan gasket, seal up the leaks. Has anyone pulled the motor and tranny out of one of these out as One Unit? I have pulled them before out of Fords still bolted together. Where should I get the flexplate from? I know there are many ones to consider depending on hp and such.Thanks!