[71GMC_3/4T]

Starters are heavy. Shipping from an online store will probably kill any price advantage. Your local Chevy garage should have one in stock.

I've never liked rebuilts from the cheap auto parts stores. Had an occasion to pull one apart once, and the internal "new" parts were crap compared to the original starter. Just enough to last about a year, with a LIFETIME guarantee (If you don't mind changing them every year, and don't mind walking several miles once a year!).