It is probably the idle control valve hoses. If they are rock solid its probably a vacuum leak.

As for the power steering, was there fluid left? If so, get a new filter and top it up immediately.

As for keeping the car...its up to you. At 220k, you probably need a complete rubber refresh. Expect $600-800 in parts for new lower control arms /w ball joints, tie rods, strut mounts, struts and tools.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k