Everybody has talked about money but don't forget all the problems you can have with all the different shops and vendors that you have to buy parts and do custom work. I had to change builders after one year and my engine guy still owes me money. If you are going to do it be careful who you get loose with your pocket book with. For reference I have been very happy with Prodigy Customs, Detroit Speed, and Boze Alloys.
As far as money goes it depends on how bad you want your car to be. I was actually in the same delima when I started. New Z06 or kick ass resto mod. No comparison for me because I am a gear head like mentioned. I want something special that I built. You will have more money in your Resto Mod. If you build a 60-100k car it has to be top quality which means a full restoration and it's not cheap. I would set down and build a spreadsheet with all the parts you plan to buy,labor, cost of the car, shipping, etc and see if you are in for the long haul because it's not as easy as it looks!
