It seems to me that Manny gives you Corvette Central prices too, not some inflated Canadian price. He's a sponsor on this site. Check with him 1-866-992-3752.
Welcome Johnny. This is a great site with lots of friendly people. If looking for parts for your 73, as stated Corvette Central has treated us here very well. You might also want to give this guy a call...right in your own back yard. I am told he has a very good inventory for the C3's. No harm in asking at least.
His web site: www.northerncorvette.com