x 2 on the RVDirect dot com mention. We had a very good experience buying our Sunseeker from them.
Now to the question you asked about. Here's some things to think about that I don't believe have been mentioned yet...
With the cabover entertainment center, & especially for that floorplan, I don't think the TV viewing angle is good. The couch is right at the front of the unit. The TV would be just to your right & above you. Can you say stiff neck? The best spot to view the TV from would be the rear dinette seat but, since it's not a high back, it isn't the most comfortable. Without the cabover entertainment center on that floorplan, the TV is nearly across from the couch. I think your neck would appreciate that more.
Not saying this will be a problem, but the cabover entertainment center would complicate any potential repairs to the area due to leaks, etc.
Consider resale down the road. What is more desired in a class C? More sleeping space or less? I think many people choose a class C specifically for the sleeping space in the cabover. I suppose you could count the responses in this thread to see what is preferred. Or maybe strike up a conversation with a used RV salesperson to see what sells quicker or slower.