My Honda Odyssey has 106,000 miles on it. The dealership service
center says I need: front motor mount $320-330; outer cv boots
$330-380 OR new axle at $500-600; decarb and throttle service $162;
power steering fluid change $89.95 (squealing when hard turning both
ways); front sway bar bushings $170-200.

Also my air conditioner/heater system knob adjuster (internal to
dashboard not external) broke and is stuck in position at "heat" and
they say this will cost $95 just to look at and maybe $600-700 to
repair.

So which of these items are the highest priority to repair? Should I
get a second opinion and are these estimates within normal range for
these types of repairs.

I need to buy a new car and plan to do so shortly so I don't want to
put more into the car than necessary to make it run properly. I could
just bag the repairs and use it as a trade-in (but I have always been
advised against using trade-ins when buying new cars.)

Please advise!