For a 2000 Grand Prix GTP, is anyone familiar with the general cost of a replacement driver's side window regulator and a right-rear wheel hub assembly? I'm pricing both of them together online around $100-$200 total...does that sound correct? Only reason I ask is because my local GM dealer today quoted me a price of about $800 each! Seriously?? What's your opinion on this? They said the hub was loose (and didn't recommend driving it) but I haven't experienced any issues driving it. Thanks.