I am suggesting the 830E which includes the embroidery module/function. I have quilted several queen quilts on my 830. I have several friends who also have the 830 and none of us have problems. It is a solid machine with many great features.
One of the things you might want to measure is how often will you use the longarm vs. the time on a regular machine. I spend more time sewing/piecing/embroidering than I do machine quilting.
I started out with the Bernina 450E (used), traded up to a 730E (used) and now the 830E (used). Bernina also has a program that when you spend over $4000 (?) they offer no interest for several years. I noted you are in Virginia and the dealer I go to is either #1 or #2 in the country for sales and service. They always have used machines to sell/trade. PM me if you want the name of my dealer (great people) in Central Pa. It would be a great day trip to visit the Amish countryside if you think you would want to make a deal w/them. Incidentally, I have been in classes w/ladies from Maryland, Pittsburgh, Philadelphia, and Indiana. All who travel a great distance just to come to this quilt shop/class/sales and wonderful people. I am sure you would find it worth your time.