Are you tired of pushing wheelbarrow after wheelbarrow to get that damn soil out of the way?
Does your Great Wall of Brodgar require so many bricks that even with carts full of it you'll have to do 2000 round trips?
Is you mine completely filled with rocks and debris that you can barely move around anymore?
Worry not, hearthling! We're proud of presenting you the new HAUL 3000! patent pending
The HAUL 3000 is an all terrain vehicle, with a 1 player-powered engine, capable of transporting up to 3000* units of your favourite material!
You can easily access the content directly, just like you would from a stockpile!
The days of carts and boats filled with wheelbarrows are finally over! CALL NOW TO GET ONE TODAY!!!
*amount subject to change
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Now that I've had my fun, I'll give you a better description. The idea is to have a man-powered vehicle (like the cart) that will allow you to hold X units of the same material (ideally more than 2000, which is the highest amount of soil u can carry with a boat+horse+cart combo, inventory excluded) allowing you to move a huge stack of materials at once.
Such vehicle should be loadable by wheelbarrow, or by hand, and should only be able to carry 1 kind of material at a time.
Since the main purpose for such a thing would be construction and terraforming, the vehicle should essentially work as a stack, allowing adjacent people to use the materials inside for building, or the soil inside for terraforming if such vehicle is parked in a surveyed area.
In my mind, the main materials that would end up in such a vehicle would be soil or stones (terraforming), and bricks or wood blocks (walls / palisades construction). It could be limited to those, or just allow for any kind of stackable item to be put into it (1 kind at a time), proving useful for moving boards, farming stuff, fish, and probably other stuff too.
I've thought about having it horse-powered, like a wagon, but it wouldn't allow you to get in and out mineholes, which is the main source of scrap stone.
The vehicle could either be made of wood, having a cost similar to 6+ times a wheelbarrow's one, or metal, reducing the amount of materials while still making it more expensive than wheelbarrows.