Wait, is this a Linehaul route, or is it a Ground route? I don't think Linehaul has requirements for owning more than one route. But I'm fairly clueless in that area. Ground "technically" requires it, but there are ways around it (forming an LLC with other single-route owners). We know plenty in our terminal who do that.
Also, there is a requirement that you must have a year of driving the same size truck (or tractor) as you will be driving within the past three years. Have you? And I might be concerned with the truck. Is it old, or just have a lot of mileage? Whose engine is inside?
There are a lot of questions to be asked, so if you just heard this could be a good venture but haven't looked at numbers personally, you'll get screwed so fast.