I am blessed with a nice quilt room now, but a few years ago I spent 3 years in a 5th wheel travel trailer while I took care of my FIL and his farm until his death.
I did some blog posts on some of the ideas I came up with and will add links below.
If any of you have seen Paula Nadelstern's books or award winning quilts, remember that she has a tiny New York apartment and does all her piecing on the kitchen table using a featherweight. Or did, she may have moved by now. But that is proof all the room in the world won't make you a good quilter, but time and attention to detail will.
the beginning
http://kalamaquilts.blogspot.com/200...-quilting.html
set up for sewing
http://kalamaquilts.blogspot.com/200...my-throat.html
My little helper
http://kalamaquilts.blogspot.com/200...-quilting.html
a failed working wall idea
http://kalamaquilts.blogspot.com/200...-quilting.html
I don't see a photo of it but what worked well in the end was covering a long old fashioned roller shade with flannel and attaching it on my highest wall, which is where the little stair way is. Easy peasy out of the way when not in use.
the little sewing corner
http://kalamaquilts.blogspot.com/200...ng-part-4.html
Cutting central although I do sometimes use the table too, as in the first link
http://kalamaquilts.blogspot.com/200...g-cutting.html
Best wishes on what works out for you!