Repair or Scrap it and get something else

My 2007 Pontiac G6, 3.5L V6has turned into my usual horrible nightmare.
Finally seemed to fix my coolant leak, and an oil leak shows up. I'm almost
certain it's coming from the intake manifold gasket. But with 235,000 miles on
it already, I'm not sure it's worth the headache and trouble for a manifold
gasket set and the time it would take me to do it.

Also, the rest of the problems are piling up, almost as if the car is going to
start falling apart and dropping parts soon. I still need to replace front and
rear shocks and struts, sway bar, sway bar links, as well as replacing the front
driver side half axle, both front lower control arms, new tires and a front end
alignment.

Question is, do I forge ahead and fix it once more, or cut my losses now
before I do something stupid to or with it?