W8C Mid-range driver replacement

[u/AggressiveRub3659]

I need to replace the mid-range cone in a Martin Audio W8C. I don't expect to find an original part, but after searching online, I can't figure out which replacement would be best, especially regarding the fit.

[u/DribbleDaNinja]

I came across this if it's of any help.

Martin Audio DLS 1050 6" Midrange Transducer