Mike,
I concur with Vickie and David. Our 2010 38TKSB3 leaves 7 feet with a dining chair pulled out where "I" can comfortably sit at the table. And "I" have a fairly sizeable girth weighing in at 218 lbs, give or take a few lbs.
The dinette comes with 4 chairs.
I don't know if you looked at the pictures that I put out on Photobucket of our new furniture or not, but I'll provide a link to that again here. Our La-Z-Boy Reclina-Way love seat is called the Maverick model and at the widest part of the arms it is 63 inches wide. If I remember right, the Pinnacle model of La-Z-Boy love seat is 56 inches wide.
http://s1190.photobucket.com/albums/...%20New%20Home/
Ir you look at what I think is picture number 3 of 74 in my pictures, it has Jo and our dog, TJ, on the couch with an end table and speaker at the end closest to the dinette. That one will give a little perspective of how much room is left for the dinette chair.
I think you are wise to delete the couch and chairs. We didn't elect to get the leather recliners and the ones we got weren't really comfortable at all.
Good luck with your new coach (when you get it).
Terry