This file is my interpretation of a Murray ‘Professional’ lowboy trailer. The rear suspension slides out to a scale 10’, just as the real one does, and yes, the gooseneck is detachable. The deck should be thin wood, or painted styrene type plastic to suit. I’ve left it open for this purpose of course! Fair warning….this is a complicated file, and I’ve done my best to remain accurate to the design without compromising too much on sturdiness. I also have tires that are made to fit, but any tire close to 30” in diameter should be suitable. The file has passed all three software checks I do, with the intention of offering it in the Frosted Ultra Detail or Frosted Extreme detail material. Should there be a problem or you have an idea you want to talk about, feel free to contact me via the direct link here, or via email to modelmechanic@gmail.com.