Well i have been thinking to share this walkthrough to you guys because it's a bit hard to give something that makes you good in the game... just kidding:P... I'll give you hints on how to make your town favorable for your party... acquiring usable town folks in town ship will make a boost in your party's capability of acquiring needs when they needed it, right? xD... well first i'll tell you who and how these people can help you... I have tried it and it worked...

Hekeller Front room of the house next to your old lodgings in HomeTown
(transient) - Hekeller opens up an armory which sells the
following items:
FlameSD BurnKN FireRG
FireBW HeatST MagmaAR
FlameSH
this person will give a help on giving your characters armory and weapons when needed... and she sells great stuffs...
Leminton Upstairs in the Capitan inn (transient) - Leminton opens up an
armory which sells the following items:
KingSD WonderRP MightyAR
DemonSH
One of the must haves in your town... he also sells great stuffs... His really useful... And i mean it...
Baretta In the Windia armory (transient) - Baretta opens up an armory
which at first sells the following trash:
LongSD BronzeST WoodenDR
SuedeAR SaladBwl SteelAR
Ristband
Baretta In the Windia armory (transient) - Baretta opens up an armory
which at first sells the following trash:
LongSD BronzeST WoodenDR
SuedeAR SaladBwl SteelAR
Ristband
Well i know her were not that good but i think it's best to have someone selling armory and weapons in your town just in case you accidentally discarded an item of yours and you can't avail to buy it again...
she also sells great stuffs though...
her wares do get better as you pass certain points
in the game. After returning from HighFort with the famous
flute, she sells:
BurnKN FireRG QuartrST
BreathAR NationHT
After Rand's mom is taken, she sells:
ThndrST ChuckDR PierceRP
EarthAR SokletAR GuardSH
Finally, after St.EvaCh is leveled, she sells this:
BreakSD DeathBW KaiserKN
AmberRG MotherRB HeroAR
ShinyHT HolySH
Karashinikofu - Inventor's house in Guntz - Karashinikofu opens an armory in
TownShip which sells the following items:
KingOfDR BirchST GradeDR
PierceRP SilverAR SlashGL
WhiteSH
he has some great stuffs although some of them were not as useful
Hanz Rear room of the house next to your old lodgings in HomeTown
(transient) - Hanz opens up an item shop which sells the
following items:
Charm IronBR D.Earing
WiseHoop GutsBT Cond.Up
Medicate