Hi guys this will be my first post but not my last

Ok so i just got me a 62 chevy Bel-Air. I know the tires need to come off, the engine is form a 74 camro (108,000) and the inside well i'm going to put new leather in it. So this is my ? the car runs fine in the city but i don't trust it to take me form dc to New york. I want a car that will run great for everyday. Should i buy a new engine and will it be ok to put a Air-Bag system in it. I have about $6,000 for this project and will have to pay for labor to. What do you guys think other then that all it needs is a paint job But i want to get some heads truning when i'm going down the street so what else could i do to it.

Thanks guys for any help you can pass on.