If you were close by (San Diego) I would have you come over and practice the walking foot quilting and then you could quilt this beautiful pineapple quilt. I just taught two of my friends how to walking foot quilt and FMQ a few weekends ago. (See the hen party post). I don't quilt or teach for money. Have too many projects of my own to finish up and not sure I'm good enough anyway. I wish I lived closer! Well actually I wish you lived closer, can't beat the 75 degree beautiful weather here.
Consider practicing for an hour or so with your walking foot and getting a feel for whether its doable. I really do think you could use your walking foot and with a bit of practice before hand do a very good job on this. The quilt will be beautiful no matter what you decide.