Looks like moths of waiting paid off, I found a full case of Series 6 blind Bags at Walmart in Sun Prairie WI today. I'm so glad I didn't get suckered into paying over $10 per figure through Toy Wiz. And since Walmart is evidently going to skip over Series 5 in my area, I even feel better for paying a little extra to buy two cases of those figures online last year.
In the meantime, here is what I found for codes:
A07047MTN Dimension X Raphael
A08047MTN Vision Quest Donatello
A10047MTN Translucent Michelangelo
A11047MTN Super Shredder Leo
A12047MTN Bebop
A13047MTN Fishface
A14047MTN Foot Elite
A15047MTN Mystic April