Defining the Kindreds in Tunnels & Trolls - Finding the Start Button

I've been talking a lot of crap this past weekend about the need for a setting for the Tunnels & Trolls RPG.  The thing is, before you can even get to the world at large, you need to know what actually resides there.  In the T&T rules, no matter the edition, the different kindreds (or races) are no more then a list of attribute modifiers.  It is assumed that you know enough about the different kindreds to make the proper choice for your roleplaying and gaming needs.  That doesn't work for me.  

Grabbing from the list in the 7.5e rules the following is the list of "Common" Kindreds:

Human - easy enough to identify with, it could still use a grounding in the fictional setting it will be used in.  Aren't even listed in the chart

Dwarf - again, easy enough to get a handle of, but could use tweaks beyond just attribute adjustments.  We do know he stands about 4' tall

Elf - there are many kinds of elves.  we could assume a "standard" High Elf from D&D type

Fairy - about 7" tall and can fly... or so the drawing shows

Hobb - think Hobbit or Halfling.  3' tall

Leprechauns - uhm, I think we would have to pass on the classic green outfit and hat.  They do get access to a Wink-Wing spell that they can do w/o magical training, but it also says they are all Wizards.  Go figure.

So, of the above, the Leprechauns have 2 sentences devoted to them.  The rest?  Nada.  And those are just the common kindred.

I need to define the kindreds before I can even think of designing any part the world.  I think I just stepped into a project...