Welcome; nice looking car, and only 12K miles. Good find.
My suggestion on mods is to drive the car for awhile before doing anything. Get to know your likes and dislikes and then scope out your own mind as to what your over all goal for the car is. Will it be a street car? a drag strip car? a track car? some combination? etc. What's the budget going to be? Once those big picture visions are established in your mind, then you can decide what changes you want to make to achieve the goal. Could be suspension changes, engine bolt-ons, headers and exhaust, forced induction, or major internal engine mods. Maybe you are happy with performance in stock form and just want to do cosmetic changes. The choices and expenses are almost limitless, so you need to know yourself before proceeding.
I would also encourage you to spend a few weeks just reading on the forum. There is a wealth of ideas and knowledge here and most everyone is willing to share their experience with you. Reading about what others have done is the best way to solidify your own ideas.
Good luck, and remember there are no stupid questions here
P.S. Fill out your profile so we know something about you and your car.