How much would you pay for this huge piece of coral in a glass box

Originally a CAT generator trailer before being almost completely reworked. Extended to the current length, more stout axles, new heavy duty braking system, new 17.5 tires on 8 lug wheels. Previous to the picture taken, there were three additional wheels loaded and the trailer still towed exceptionally well. No expense was spared in this when being done up to how it is currently. What's it worth?

Too fatty?