Can't say that I've ever seen one. Not to pick on your ride, but it's probably not a popular enough modeling subject for a manufacturer to invest in. All I found on a search were Skylines, Zs and forklifts. You might try die cast companies like Burago.
To be quite honest, you probably know more about where to find such a kit than anybody in this forum. -or at least where not to.
The Titan is generating some waves in the industry. Model makers might see a kit of it to be profitable soon. LOL
-fish