I’ve done the entire length of Oregon and Washington but not all of California. As a kid our scoutmaster would volunteer us to build or repair a section every year.
Well we only did a part of California and given proximity we knocked off what we did in one week chunks, one or two longer chunks. Never attempted more than that a year. Most of it in Boy Scouts.
Congrats and well done! Must be quite an experience. My Nephew did the "Continental divide ride", Montana (Canada border was closed) to Mexico on a bike. Both must be life changing journeys. CL