HELP ! 96 Passport 3.2 v6 won't start

I get a clicking sound when I try to start my engine. Bad starter? My
father in law tried to turn the engine from the pulley with no luck.
Engine seized? Filled engine oil on a Friday, drove 60 miles. tried to
start engine on saturday and it clicked a couple of times then started.
On sunday (day 3) it took longer to start. Starter clicked several
times. After third time turning key, engine started, then we drove 60
miles back home. No performance problems on highway. Parked car in
driveway. Monday Morning vehicle would not start, just a few faint
clicks. Monday night jumped with another car and got just clicks from
the starter. Any ideas out there? STarter? Engine seized? Crappy
vehicle? By the way, to remove the starter, involves removing exaust
maifold tubing to make room. Pain in the rear for someone with basic
hand tools.