Heavy Wagon Animated Object
Huge Land vehicle
This large, four-wheeled vehicle is primarily used in caravans to transport goods over long stretches of territory.
Animated Object (Huge) Wagon, Heavy
N Huge construct Squares 8 (10 ft. by 20 ft.; 5 feet high)
Init -2 Senses darkvision 60, low-light vision; Perception -5
DEFENSE
AC 17, touch 8, flat-footed 17 (-2 Dex, +11 natural, -2 size)
hp 78 (7d10+40 size)
Fort +2, Ref +0, Will -3
Defensive Abilities hardness 10 Immune Construct Traits
OFFENSE
Speed 30 ft., fly [clumsy] 40 ft.
Melee slam +15 (1d8+15)
STATISTICS
Str 30, Dex 6, Con -, Int -, Wis 1, Cha 1
Base Atk +7 CMB +19 CMD 27
SQ 4 construction points
SPECIAL ABILITIES
Construction Points
Huge animated objects have 4 construction points.
Additional Movement (Ex, 1 CP): Gains a new mode of movement (fly [clumsy]) at a speed equal to its base speed.
Faster (Ex, 1 CP): One of the object's movement modes increases by +10 ft.
Metal (Ex, 2 CP): The object is made of common metal. Its hardness increases to 10, and it gains a +2 increase to its natural armor bonus.
LOAD
Decks 1
Cargo Up to 4,000 lbs.
Spells and Cost
Shrink Item
DESCRIPTION
You are able to shrink one non-magical item (if it is within the size limit) to 1/16 of its normal size in each dimension (to about 1/4,000 the original volume and mass). This change effectively reduces the object's size by four categories. Objects changed by a shrink item spell can be returned to normal composition by a word of command from the original caster.
Shrink item can be made permanent with a permanency spell, in which case the affected object can be shrunk and expanded an indefinite number of times, but only by the original caster.
Permanency Shrink item 11th 7,500 gp
Animate Objects
Permanency Animate objects 14th 15,000 gp
MW Heavy Iron Wagon 500 gp
Cost 23,000 gp 4,600 each
You list shrink item in spells needed but you don't actually specify how the wagon shrinks. Can only the creator shrink it? Can anyone with a command word? Does it have to be empty to shrink? And how small does it become? (It might not be the same factor of shrinkage as the spell normally provides.) Is it still animated when shrunken, and with what stats?
Also, I'm not sure why the ability to shrink is worth a 50% increase in expense. Usually you shrink things to make them portable or ensure they won't be stolen in your absence, but the wagon should be able to handle that itself.
Would a comparison with how the Folding Boat works help ? Make a folding heavy wagon first, then animate that ?
How about a Magical Flying Wagon?
Highlights:
11,100 gp for a by-the-book flying wagon.
3192 # light load, 4000 # medium (max load).
speed of 30', Fly 60' [clumsy]
7 HD and 4 CP.
No one thinks a wagon moves on its own, and it does not detect as magic, so would likely be ignored by powerful things troubling you, and can overcome wimps troubling your campsite.
/cevah