The $79.90 shipping he's charging is basicly the price of the part, the $14.86 buy it now is the shipping cost, my reasoning on this comes from the fact we sell them here
http://www.gmcpauls.com/SALE_SPECIALS.htm
for $80ea, and ship anywhere in lower 48 in USA for $17.50
He's definately breaking ebay rules.
GMCPaul