Actually, the Modding forum is more for items made/designed by yourself or other members. for posting about off-the-shelf type stuff there are plenty of various sub-forums for discussion of different topics ;-)
For discussing mech
mods here is where you'd be best to visit:
APV Discussion
And there's a whole sub-forum for RBAs, too:
Rebuildable Atomizer Systems
Welcome to ECF!

It's a big place, but trust me it doesn't take long to start finding your way around
