On the one way ratchet, just do a google search for “ratchet adapter”. There’s a multitude of options and prices. Here’s one I picked off Amazon, but there are many more.
1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."
Chris Pichler is the guy you are looking for. He’s a great guy with EOM quality Mercury fuel lines. You can reach him via email at Duskdesign@rogers.com.