Like Xfire ... I have used most of the suppliers for one thing or another. Shopping around does sometimes pay-off.
Most of the time I use Corvette Central when they have their 'Canada Free Shipping' promotion.
Like Riley mentioned....This usually happens every couple of months.
CC is a customs agent and can include 'final' pricing in their quote.
Be sure to contact them by e-mail before you place your order on-line. Send them the part numbers/quantities and postal code.
They will get back to you with a landed price at your door including shipping, duties, taxes, etc.. No Surprises.
The instructions are on their website.
Depending on the pieces you need sometimes 10-15% is a better deal than free shipping.
graham