The rules at the beginning of this section are a special subset of the main rules, due to the nature of this sales in this section.
General Classified Thread Rules apply unless amended by subset.
I see no such amendment, therefore you are requested to comply with Rule 15 as stated here
http://www.p8ntballer-forums.com/vb/showthread.php?t=38327
Further clarity can be found in the main rules section
http://www.p8ntballer-forums.com/vb/showthread.php?t=101589