I did not like the plate version as it will place a lot of stress on the intake bolt nearest the vertical bit of metal. I made a 1.5" square tube frame and then welded a plate with the intake bolt pattern to that. i used a 1/2" shackle from menards for the hook which had a 5/8 bolt.
The tubes are lengths of 13.5" (across the intake), 10.5" (vertical), 8.4375" (top).
Plate drawings. DXF cut files in the zip attached.
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