Are you paying 4700 cash or making payments? What are you trading in? Thanks
The only way to tell if gasket is going is if your going through coolant or oil looks milky and both would already mean its starting to fail. When the oil and coolant mix you usaully will not notice until checking the oil and it will look milky. THe intake gasket is doeable, I've done them a few times...Its not fun but could be alot worse. Here are replacement instructions from manual.