Rick Davie

I'm currently looking to purchase my first classic truck for a weekend cruiser/hobby,I'm looking to buy a ealry 70's Chevy pickup and was wondering if anyone can help me out on some do's and dont's when purchasing an old truck? What to look for etc.? Is there a model that is known for problems? C10, Cheyenne? What's the difference in models? I appreciate any and all responses. Thanks.