This looks promising.View attachment 537247
Ooo, a beam saw...a new cord and good to go! Or put that bar and sprocket on a newer circular saw.
If you need fresh paint, I suppose you could just get a new one...
Prazi USA PR27 Beam Cutter Non Worm Drive - - Amazon.com
They also make them left sided for worm saws...but then you need a worm saw to put it on, and we're starting to talk real money. Probably the best way to go, though.