The outer shell of the body is cast aluminium? It usually cleans up well. I know frozen parts can be cumbersome and needs patience. If it looks like it eventually will clean up well I would not give it up, but if it's like the Necchi Lydias it needs to be in very good shape for anyone to bother finding solution for the parts that often cracket. Someone who wants stretchy stitches has to accept a few plastic parts.
I haven't had my hands on a Vigorelli, but I will say it's well worth fixing up an old Elna Supermatic or and old Bernina from 50s and 60s, there's a few plastic gears, and the camstack often needs a bit of work to shift again.
Last edited by Mickey2; 11-01-2017 at 10:58 AM.