I tracked down this extremely rare CD containing David Porter's reconstruction/realization of the Overture from the Third Orchestral set. To be honest, it's not very good. The music meanders and then stops. It's pretty much an anti-climax. Incidentally, since the recording has been made, Porter has asked that the work be withdrawn.
On a brighter note, Porter's reconstruction/realization of Ives' Emerson Concerto is quite a piece of work. And it recently received its premiere recording by James Sinclair and the National Symphony Orchestra of Ireland. Check it out.