I'm not trying to be a spoilsport and honestly only wish you the best, but just spot-checking some of your prices I see that most are higher - sometimes even double - what Lone Star (mycomicshop.com) is charging. And they're expert graders, who provide scans and free shipping for purchases over $50. They'd be thrilled, for example, to sell their backstock of Dazzler #1 in VF condition for $0.80 each (or anyone can buy VFNM copies on eBay for $1.00-$1.50).

I've been a comics collector for 30+ years, and IMO it's really, really difficult selling stuff like this. The shipping cost usually exceeds the value of the comics, and comics can't ship as Media Mail (some people do it anyway, but USPS has started spot-inspecting Media Mail and hitting the receiving party with the upcharges on comics - I've had it happen twice already). For that reason, low-value comics are usually sold in lots of 50+ for $10-$20 a batch.