Aftermarket speedometer replacement???

i have a 74 dart swinger......kinda goin for the retro dash with newer gauges.....i have all new 2 inch gauges where my factory non working ones went however my question is i am looking for an aftermarket speedometer i can replace my stock one with that hooks up to the factory style or oem speedometer cable that went in the back of my stock speedometer.......lookin for a white face set up , would like it to be sunpro so it would match however i havnt seen one yet that wasnt electrical ... im obviously making a custom panel to fit a round speedo....tach already sunpro mounted on a pillar....any help would be useful..kinda at a stand still....thanks to all who look....

im ron burgandy?

If you go with an Electric Autometer speedometer you can use ther GPS interface and eliminate the cable all together...it's a cool piece. They(Autometer) say it works with most aftermarket Electric speedometers.