I think you should follow your heart. If you are feeling really guilty about machine quilting - put it up. No matter what you do - you should enjoy the quilt and if you are not enjoying it and don't think you would ever enjoy finishing it - then definitely machine quilt. Absolutely NO quilting police in Texas (LOL). The purpose is to put love into your quilt and I also had a queen quilt I was absolutely SICK of before I finished it and could not wait to get it done. I did and still do love the way it came out. Give yourself a "break" both mentally and physically. Start something else you will enjoy doing.