Magna TJ executive auto..

Other day when I was at the lights it started missing quite a lot near idle and had no balls when putting the foot down, it was also blowing quite a bit of smoke. I got it home and left it overnight. Next day I got in to go to work and made it maybe 300m down the road before it just stalled and cut out, I got it towed home and started having a look today.
I thought maybe the spark plugs so I checked the front 3 leads as I don't have a plug socket and 2/3 had oil on them (can't get to back 3 due to inlet manifold).
So, after a bit of research it looks like it could be valve cover gasket? I'm considering getting rid of the car soon so is it worth spending money on fixing?
edit: There's quite a lot of oil on the engine also and has had some trouble with oil leaks (uses quite a bit of oil)

Any and all help appreciated,
Cheers

I'm considering getting rid of the car soon so is it worth spending money on fixing?


Who would buy it in the condition it is in? Unless you want $300 for it from a wrecker, it needs fixing.

Who would buy it in the condition it is in? Unless you want $300 for it from a wrecker, it needs fixing.
That was the idea.

I'm pretty hopeless with mechanical things, but replacing a valve cover gasket is really easy. The front bank is obviously easier than the rear, but the rear is still a simple job. The valve cover gaskets are only about $22 each from Repco. If you change the rear bank you will need a new plenum gasket as well.