you can always unpin it, reverse it, repin it and complete it away from you. it's a very decent start-up size and with the extra effort, can be used forever if it's wide enough. the price is certainly right.
btw, this sounds like a dealer, but i don't know if it matters. ask them what happens if you run into problems once they're not there. can they help you with some kind of support? also, where is your nearest repair place? what if you don't like it once you try it? to give you 7 hours of their time (driving, lessons and set-up) and then have you say no won't make them happy. as a second owner, do you get tech-service from the manufacturer?
i know it's exciting, but be cynical.
EDIT: i had a brother SL1600 with a 9" throat. when i got to the bottom of a queen, i had a very tight 5" for quilting. you'll have more, obviously. but maybe not more than 6.5" , as was said. i ended up turning it and reversing the quilting as i explained. or you can do quilts sideways. or both.