I paid less than $300.00 from Down South Motorsports for all 4.
(I just pulled my reciept, $299.99 - $17.00 TW forum discount = $282.99, free shipping. This was a year and a half back)
and no way I'd pay $660.00 in labor to have them installed. The rear is an hour job I can do myself w/o even removing the rear wheels.
The fronts are more work...maybe worth a few hundred, 200-300 Tops.
yes, an alignment will go about 70-100 bux.