Converting from mechanical to hydraulic cam and lifters on 273 Dart

Need some help here

I am converting my 65 Dart 273 to hydraulic cam and lifters and can’t find the right length pushrods. I did not get hydraulic rocker arms and kept the mechanical adjustable ones. Do I need to get hydraulic rocker arms as well and will the OE rocker shafts fit ?

Resized_Resized_20230625_113644.jpeg

Resized_Screenshot_20230625-113900_Gallery.jpeg

Resized_Resized_20230625_113413.jpeg

Resized_Resized_20230625_114114.jpeg