The later 130 and 140 model mini Macs that had an anti vib suspension system were not too bad to work on .The 110 and 120's were a gigantic pain in the buttocks to do anything on .
I don't know how many of those things I have,maybe half a dozen .I never paid a dime for the whole lot,all freebies .One had the original McCulloch chain on it that had never been filed .I assume it died on the shelf from inactivity.Many did .Trim a tree ,let them sit forever,won't start buy another one
I chanced upon a whole box of new chain loops on flea bay for cheap with a 10 second to go snipe bid .I only bought it for a couple of Homelite branded 1/2" chain .In that mess was a bunch of NOS 14" loops for Mini Macs .