I like the idea of this project as I've been following your hints in other threads of getting a project going like this... but I have to ask a few questions since its a topic I can relate to, and can probably add some perspective on since I've been there.
First, how much do you have to spend? Understand that ultimately your budget will decide how the car looks. Do you have a timeline in mind? Usually, the quicker it comes together, the more it will cost. 1 year? More? 3-5 years? And lastly, what are your plans for it? I know you mentioned 'track use' but thats somewhat vague... is it track as in to learn to drive fast with aka proper driving schools, or track as in lapping days aka hero days, or track as in race with legit vintage racers?