Hi Ted,
Collecting junk for sale is a sure way to cover all your needs, but it is a long and tedious journey.
To spare yourself a headache I suggest having at least one rogue or bard who has Sleight of Hand expertise. Cast a fog cloud near the trader, hide, pause, steal. Let your cleric cast guidance in advance to increase your chances.
If you are against stealing due to any role playing purposes, then I suggest trading with the party member who has the highest Persuasion stat, because it affects the trader's prices. Gold comes as a quest reward less often than expected, sadly. Therefore, its either raiding and trading, stealing or using glitches.
