[wiswind]

Check the level of the power steering fluid in the reservoir. If it is low....then that is likely the source of the fluid that is all over the place.
As Tom mentioned.....getting those metal lines lined up just right to thread them in is a real pain. I have been there and done that and know just what he is talking about. A small leak right there can make a really big mess.....and get that belt slipping again. Once you get oil/fluid onto the belt.....it is best to replace it with a new one.
Also, do not OVERFILL the power steering fluid.....it should be no higher than the highest line on the fill cap/dipstick. The fluid will expand some when it gets hot. Also, any air in the system can cause the power steering fluid to foam. If you have air in the system....it will make noise. To evacuate air from the power steering system.....verify that the fluid is full up to the proper line in the cap/dipstick..... Start the engine and then turn the steering wheel all the way one way (not pushing against the limit) and then all the way the other way. Then turn the engine OFF and re-check the power steering fluid level. If there are lots of bubbles in the fluid....you may need to wait a while (for the bubbles to rise up out of the fluid) and then repeat the process again. Also, the correct fluid to use for power steering is Transmission Fluid. I would use Mercon or MerconV fluid for this. The vehicle originally called for a Type F fluid, which could be hard to locate. I prefer a synthetic fluid (thus the types I mentioned) as the power steering fluid gets really hot.

If the battery is dead......or low, the vehicle will not start.....even though there may be enough power to turn over the engine....the voltage may be too low to pull in a relay required for ignition.

"Gunk in the breather tube/tunnel thing"......it is NORMAL for some oil to be in the big flex hose that goes from the throttle body to the air filter. I know that is not ideal.....but it is a result of the oil vapors being drawn in from the crankcase. The PCV line connects right at the throttle body....and it is my theory that when the engine is shut off....some of those vapors can settle into the throttle body and run back out into the flex hose. It looks nasty, but does no harm.

One other thing that I had happen......is the Idle Air Control Valve (IAC) can stick.....and the engine will die unless you are pressing (very slightly) on the accelerator pedal.
This valve is what controls the engine speed when your foot is not on the accelerator.