[purple gas]

For me, the important question isn't " Where do I start?".
The thing you really have to determine right off the bat is "When do I stop?"
Do you want a low budget reliable driver?
Do you want a nut & bolt, body off,no limit restoration or custom that will be a trailer queen?
There's lots of possibilities between those two. What's your budget?
What is your skill level?
If you can be honest with yourself about your abilities and have a realistic goal you have a better chance of achieving what you want.