Check out Nolting.com and look at their used machines, especially the fun quilter. Scroll down the page. The fun quilter is a mid arm, 17", machine. Mine sits on a hinterberg frame which can outfitted with however long a poles you need. His prices do not include tables unless stated. Have fun looking.
http://www.nolting.com/usedmachines.php
Another place to look to get ideas:
http://www.longarmuniversity.com/machines_for_sale.htm