Not sure if such a thing exists but had an idea for a fun little class
Basically
Its a caster class that doesn't get any spells per day
It can learn any spell from any spell list
Gets a bunch of item creation feats as part of its class abilities and some abilities for making stuff quickly
Thus can pretty much craft any item in the game once the appropriate spell is found/bought and learned.
Also has the ability to replace the items caster level with the charcters so you can use a level 1 potion at full caster level or a wand or staff
Would also have some limited item recharge abilities
But basically every spell it uses costs money but if a very economical use of funds.
e.g. a 375gp wand of burning hands after 5th level becomes a 5d4 fire cone attack costing 7.5gold per attack
wands, potion and the like found as loot are very useful for this class you can power them up to his CL as long as he's learned the appropriate spell
Thoughts ?
Check out the Artificer class from the Eberron Campaign Setting (3.5). It has many of the same elements as what you describe above, and would be a good starting point.