I want to have the ends painted and im guessing that the best finish would be Vitreous enamel .
Any thoughts on any other finishes that might suit and does anyone know where i can get this done

pretty sure you can't get Vitreous enamel done & if you could it would be very expensive.
I hand a cast iron bath restored a few years ago, they call this re-enameling but all they do is spray the bath in 2-pac paint.
couple of options could be try buying a new hood from the manufacturer or paint the ends with an engine spray paint