Forum:X, Universe, and 2010

I just have a few questions for people with perhaps more knowledge than me, since I started reading the Sonic comics in March 2011.

First off, the Archie comics store lists three yearly sets for Sonic X but the last one only goes to issue 38. Is there any way to get the last two in the series without buying from Ebay?

Somewhat connected to the last question, does anyone know when the 2010 sets will become available for purchase on the Archie store? I'm itching to get the Sonic Universe set in particular (leaving me only to collect January and February 2011 until I have them all). In one Q&A portion of a Sonic or Universe issue someone asked this question but the answer was a bit confusing.

And thirdly, I noticed in Universe's ad pages that there are twenty slots for story arcs, nine of which are revealed (including the Babylon Rogues' story). Has it been confirmed that twenty arcs (and thus 80 issues) are the limit for now? This may be stretching it a bit, but I don't think they can have 20 arcs without reusing characters--is it plausible that each character or character group will have two arcs?

I appreciate any answers people can give and I'm glad to be on the site.