love the look this one is taking and as for the airbags there was somebody on here making and selling them there is also a tip on how to make them using airplane wheels and heat shrink tubing on here I just can't find it right now.
I like where this is headed. I would lean towards the caddy engine cause shine runners would leave the car looking stock but the engine would be hopped up or swaped out for something more powerful than the cops had in order to out run them. I just don't think the flathead would cut it. But it's your model do as you wish.