Love the signature,
In my previous post I touched on possiblities for this (if you hadn't read yet due to typing yours or something).
I can see it just taking more tickets of a lesser item to get a higher item.
Example: 20 Chakrams or 20 Headbands or 20 Mantis Eye = 1 Body
Also I believe that tiers will be linked
Example:
Akvan / Kaggen / Pil's Bodies will all = the same ticket type.
(this part I didn't really touch on) Also let's say you're spamming t6 to upgrade empys and you start getting multiplie ra/ex drops from those, considering they're all "higher" level gear you could in theorey turn those ra/ex items into lower ranking gear if you so desired.
Example: Ogier's Surcoat x6 = Toci's Harness or whatever lower item you're after.
These are just my thoughts on how things will work.... or how they should work... we'll see what happens eh?