There are two ways to go with this kind of quilt. Check with a long Arm Machine quilter (LAM) to see if they would agree to do it but there are no guarantees. The second way is to have it hand quilted by someone who does this. I think this would be more gentile on the quilt and maintain the aged quality of the piece. Church groups do this and it is not very expensive but worth it.
Do some research before you decide. Looking forward to see it finished!
peace
PS: I missed the post about your hand quilting it. Wonderful! And even if you don't use it after it is finished It can be displayed.