The E-Z Trail Header Cart is this one. It's roughly 27 to 28 feet, in my opinion; a header of 25 feet is too tiny, while one that is 30 feet is too large.
Gravity wagon wheels just look nicer, so I added them. The headers do, in my opinion, connect to the cart.
In the future, I may do a red one.
The cost is $2895.
TorqueWrench1 and BMNM, the original modders, deserve recognition.
(The headers seem to be floating since the mod is poorly constructed.)

Thanks to MFT Modding