i just recieved my front flex disc, drive shaft support and bearing today for my 87 300e. since it seems like an unsafe job to do with jack stands, i was wondering how many hours of labor it would take to change out both of these components. i dont want to get ripped off.

------------------
87 300E
BLACK GOLD WITH CREAM INTERIOR, SPOILER, AIRDAM
CLEAR MARKERS

87 420SEL
BRONZE WITH CREAM INTERIOR