Welcome Jon,
I was in the same position last year. Rode airheads for decades, then bought a low-miles 1985 K100RS. It was a big leap for me and I struggled for a while with the challenges of learning new wrenching tricks. Now all's well and I'm looking forward to some weather that will let me enjoy her again.
I'm battling cabin fever now, keeping sane by reading about what I can't at the moment ride :dunno