I am a happy owner of Bailey Pro 17 E machine with Grace Majestic Frame and the more I use it, the more I am happy I got it! No elelctronic/computer parts are there to break down, and it is easy to maintain and keep clean.
Hobbypatches, I just looked up the Grace II frame...it takes machines with up to 16" inch throat space, so it will take a Bailey with 15" throat space. Good luck!