Replacing the drain plug

[RobsTV]

Cleaning up transom here, and I like the look of the new drain.

With my '73 Center Console, the drain and both scuppers had the brass inserts, and all three are bad. Looks like same brass insert is used in all three locations. Each scupper had a rubber flap attached to outside transom with a single screw above. Did not close well.

What 3 parts are recommended as replacements?
Brass tubes again, with rubber plug for drain? Or Drain like photo above, and modern scupper? Part #'s and sources would be great help!

Thanks,
Rob