Which Oil Dipstick?

Hi All,

I have a '66 Dart with a '71 slant 225 installed. Ages ago I broke my dipstick and I finally want to replace it but have no idea where to source one. Does anyone know what will work?

I've looked on eBay and there are very specific year/body auctions but nothing that seems to match my setup.

I've looked at a Moroso 25970 universal kit but not sure I can make that work.

Thanks!