New car!! Need advice on starting!

take this advice from someone who learned the hard way -- if your getting a new tank, then run NEW hard line. you'll be amazed at the amount of crap that will come out of the old one especially if its been sitting with gas in it. it only takes a little tiny particle to make the carb start acting funny and if your going to rebuild the card as you said, you don't want to do it twice in short order. also rust build-up in the old line can restrict the fuel flow, it might run ok on the street but once you get on the highway you could have serious starvation issues or, worst case, run real lean and burn up the valves. a new line is money and time well spent, especially for peace of mind.
-tim