The throat on a 440 will allow you to quilt on a frame, but your quilting space will be limited to approx. 5" (I know, I am currently quilting on my 440 and Bernina quilt frame). One thing you might want to consider is that Bernina has discontinued manufacture of the 440. They will still provide parts for repair for several years.
Go talk to your two friends and see who can offer you the best deal for the price you want to pay.