Mechano-hog

Q u o t e:
So i've been collecting money for mechano-hog, but i would like to know what would be a good amount to pay. (by this i mean what is the average price)

i currently have about 12k gold but i cabn grind more.

I believe the vendor bought materials come to around 12.5k alone, let alone the rest of the materials used to make it which can be farmed for as well as any charge (if any) the Engineer crafting the bike chooses to add on top. :)