Don't look at me, I'm allergic to grime

No, townies like those only live in the neighborhoods they were placed in, as they were created by Maxis to be in those towns.
You'll have to place them yourself if you want them in your town. c:

Leaders of the supernatural groups will spawn on their own, however, just not the pre-made sims like you mentioned.

Nice!
It's good to see someone who is active in the community! c:

Welcome! c:

Oops, I must've been braindead, I didn't see that it wasn't included ha

The hair is here,
http://svs.paysites.mustbedestroyed.org:8080/booty/ts2//raonsims/malehair/

it's hair 21 (even tho it was actually male hair 36 on raonjena), and that'll include all the basic colors it came with originally.
As for retextures, I'm having difficulties finding any natural ones, as most of them are odd-colors.

There is this one here
http://www.mybsims.net/t5954-raon-hair-male-36
but it may only have the three colors shown, I'm not sure

It's at xmsims c:
http://www.xmsims.com/sims2/ehtm/simermodel/modelmale13.htm

The one pictured looks like a retexture, and might be from someones blog or even gardenofshadows!

Parsimonious has a gypsy build set!
http://www.parsimonious.org/furniture2/pages/build_k8-Wandering.html

There are a few different colors, as well c:

Hi, welcome c:

Brennan

There's a basketball one here on insim
http://www.insimenator.org/index.php?topic=109781.0

and I don't know if this is the interior design one you tried, but there's this one
http://modthesims.info/d/231795

I don't usually mess with TS2 stuff anymore, but I'd be willing to play with it, with the condition that you test it in game for me once I get the mesh done c:

hOI!
Welcome to InSim c:

It's myos' hair #15!
Here's a really nice recolor on GoS c:

Six years for me, heh
Aaand I'm drawing other than that