I would be FMQ it on my domestic machine. I am seriously thinking of making two separate quilts out of these. I love them both and I think that you are right in that they would be better quilting separately. Thank you for your thoughts.

Just to come back and say there is NO way I would FMQ these as front and back on a domestic. I don't think you would be able to get over all the seam humps on both sides. Too much thickness. And I FMQ'd on my Elna (6001 quilting version) for years (7 or so) before I got my sitdown Handiquilter Sweet Sixteen and I won't even try this on that one. Maybe a longarm where you can "stretch" the front back in a consistent manner and hold them taut.

But both really are beautiful!!

I would definitely make two quilts! It will save you a lot of grief, plus I think they really are two gorgeous quilts rather than one quilt top and one backing.

Of all the markers out there, the only one I would even bother to test would be Crayola Ultraclean Washable markers like these: http://www.amazon.com/Crayola-Ultrac...dp/B00IYDM814/ . You would need to thoroughly test whatever color you want to use on every fabric you want to use it on. I would use scraps of the actual fabrics, iron over the marks, set them in sunlight for a day, then wash to see if every trace comes out. Also, I would Google these markers and see if anyone has posted difficulties with getting a color out of their quilt.

I would not try to use any kind of colored chalk or the Frixion pens. The dyes in chalk are notorious for not coming out of fabric, and the Frixion pens can leave permanent shadows on some fabrics.

Depending on how you decide to quilt, you might want to consider using freezer paper templates ironed to the quilt top for FMQ. If you have an Accuquilt Go! cutter, you might even be able to find a die for a design; this makes it super easy to cut out a lof of templates in a short period of time. I also recommending investing in the Jenkins freezer paper; much easier to use in the die cutter than regular freezer paper because it is already cut into flat pieces (it is also thicker than regular freezer paper). Here is a link to the sheets I like on Amazon, although you can also get them from the Jenkins website:
http://www.amazon.com/C-Jenkins-Free...dp/B00114Q5NU/
The templates can be peeled off and re-used too.

If you cannot find a die to use for the freezer paper templates, you can draw your own. A quick way to cut them out is to cut over-sized pieces of freezer paper and trace the design onto one piece. Layer that piece on top of up to 5 additional oversized pieces. Iron around the outside edges so they all stick together. Use a good pair of scissors to cut around the design and, when you are done, you have 6 templates from 1 tracing and 1 cutting.

Finished my Curved Log Cabin baby quilt today. (In time for baby shower on Sunday.) Here is the finished quilt with FMQ, which I did on my domestic machine. Thank you again for all of your advice. It helped me more than I can say.
[ATTACH=CONFIG]542873[/ATTACH]

do you have the pattern for the front piece only?

It's called a Curved Log Cabin; if you do a google search you should be able to find several patterns. The center square piece was part of a panel.

Beautiful quilt. I guess a simple way to FMQ both sides together would be just to meander all over. When meandering you can use different patterns such as big loops, small loops, combine big and small loops, make leaves. Those are ones I use but there are more I'm sure.

What beautiful top and back. It is also an unimaginable challenge to line these up for quilting for me. I would end up making 2 separate quilts but on the other hand this is to die for gorgeous quilt top and back.