Several of the parts in this rig are also obsolete.  Heath does not give a cross-reference for the display.  It is probably a Futaba but a special manufacture for Heathkit.  Make sure if you buy this unit that the 2 options HWA-5400-2 & 3 are included otherwise you will probably never find them. I have sold all my Heathkit radios but will keep the WEB site updated as needed.

This radio was very difficult to build and many of them ended up at Heathkit either for repair or to finish building.