Shipping is always a killer :(
Consider shipping to Blaine, WA and picking everything up yourself. Though that might make less sense now with the CAD shitting the bed. If you go that route, 5dpackages in Blaine is $2 to pick-up.
Some other equipment companies worth checking out that might have competitive shipping (not all have iron though)
Again Faster: https://ca.againfaster.com/en-ca/shop/bumper-plates/
Werksan USA: https://www.werksanusa.com/
Iron Company: http://www.ironcompany.com/weight-lifting-plates.aspx
and last but not least, don't forget your fractional plates: http://ironwoodyfitness.com/products/olympic-2-in-fractional-plates Worth their weight in training gold :)