What about shipping with the GM Lip? Wouldn't essentially be the same?
ShopGmParts is the best to buy it from. $30 to ship IIRC.
I got mine for $330 shipped, it may have gone up a little since then, so I would say the window is probably like 330-350$
Cry havoc and let slip the dogs of war.
2004 Saab 9-5 Aero - WAHSAABI - Way too much power/Koni FSD & Hirsch Springs/Big Sways - DD/AutoX'r
2007 Ford F-150 Lariat - 5.4L V8 - Bill secretly likes it
2015 Mitsubishi Outlander Sport SE - Wifey Mobile