Personally speaking I’d go for S-61L type landing gear,
stronger than the S-58 type and designed for the heavier
machine.

When originally used as airliners the struts were covered
with fairings, these were removed on all the logging birds
I worked on, 61Ls and, 61Ns with L gear. The floats were
removed from the 61Ns as part of the conversion to heli-log
machines.
