The class A's in question were designed for the old Star Trek: Miranda
PbeM by Pat Weber with some assistance from me. I've never seen the Fleet 31 versions from your first link, but the second link is actually one of our old members, and yes, she did make it herself. What she did was simple enough (or as simple as can be said about the single most complicated uniform pattern available); she took her pattern for the Star Trek II-VI
"monster maroon" uniform and just substituted the DS9 fabrics.