MASSIVE signed card collection UPDATE

[JasonD08]

I am looking for feedback to start off here. I am trying to find the most economical and less intense way to sell off the balance (30,000-50,000) cards of the find I purchased 2+ years ago. These would be mostly all commons from every sport. I am thinking perhaps offering team lots, year, or brand lots here first? Any input from the auto experts would be greatly appreciated. All HOFers, most deceased, and most stars have already been pulled and put into eBay store. There will be more home town heroes and semi-stars etc. in the large mass for sure, but for now just assume all commons. Most years/brands have little to no duplication which will make it nice. Here is what I am thinking as far as breaking them down:

Minor league baseball
Major league baseball 1950s-1990
Major League baseball 1991+
Basketball pro
Basketball college
Football NFL
Football college
Football european or CFL
Hockey pro

Certified from packs:
Hockey
Football
Baseball
Basketball

Should I just mix in the certified cards with the hand signed cards? Also would it be best or more profitable to offer everything in just teams?

Any input greatly appreciated.

Jason