Congrats! You'll love it. I picked my '85 up last fall for $150 in pristine condition, including the stock tires. I switched over my Brooks B17, put on Brook tape (half price at, of all places, Nordstroms), suntour barcons and put on suntour cyclone mk II derailleurs in place of the stock shimano. It's a great, great bike. At this point I have no plans to retire the stock wheels, as they're in great shape.
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Don't complain about the weather and cower in fear. It's all good weather. Just different.