Trying to source parts in Canada

I just bought a MIG welder (Millermatic 175) today so I need to get some floor pans and frame rail caps to repair the rusty parts on my 65 cuda. I'm having a difficult time of sourcing parts from local suppliers, or even if not local at least Canadian sources. I could get most of what I need from Layson's Restoration in the US but that means having to deal with shipping and travelling across the border to pick up my stuff, since shipping across the border can cause long delays and more headaches such as brokerage fees.
So, if any of you Canadian members have any good suppliers that you deal with let me know.
Thanks. ( All the guys in the USA you are all so fortunate to have a great supply of parts all of us in Canada are envious! :sad2: )