I would have voted Cardinal Red, if you would have wanted that. I think the sunburst may be difficult when changing the bass to an original two piece bridge from a three-dolt. You will have to do a lot of work to fill and mask the 3 holes. It can be done, but it is difficult. An opaque color would mask that better. You could also take a piece of mahogany veneer and lay it down the middle strip to cover the mess, so it would look original and look nice with a sunburst. That is the way I would personally do it, but it depends on your skill level and how much you want to mess around.