Here's a video of Mark and some of his collection back in 1998. It appears that the Eldo was his wife's bike at the time. https://www.youtube.com/watch?v=Rpae8Nn3_iw
I found out about Mark Linkuos through this video, and then I found out how he worked with Daniel Johnston (another eclectic musician) through listening to a cover of one of those songs by Beck Hansen.
So Sparklehorse has connections to a few of the musical circles I follow. They don't have a lot of songs I remember, I'll admit, but one song called "Saturday" is a favorite of mine and I learned a simple cover of it on guitar.https://www.youtube.com/watch?v=5cEcGJY_iiA
I'm always sad thinking of what happened to Mark.
I'm happy to see his bikes live on! Thanks for sharing your story, when I found a musician who played a bit like me, and who loved Guzzis... I just felt a bit of a kinship.