🚀 go-pugleaf

    Over the last couple of days the screen my faithful old Mac Plus 
has started to jump and flicker rather badly.  I recall from other 
people's horror stories that the Mac has a failure mode where the 
screen goes black with a narrow white stripe running up the middle 
:-(skunk mode).  Can anyone tell me what part is going bad, and 
whether or not there is any advantage in getting it fixed before it 
goes out altogether?
    I know that SOP at most authorized Apple service centers is to 
simply swap out the major components until the problem goes away, 
and then charge poor sucker, er, valued customer, the full price of 
the board.  Can anyone recommend a shop in Southern California which 
will fix a problem at a lower level (ie. less expensively) than this?

-Thanks for any help,
    Bruce Florman