Thanks again for all of your responses! I keep reading and re-reading all of them.
I've done a little bit of research and visited my local sewing store. Their machines were all out of my price range. I wish I could afford an air threader!
But, I'm looking at the Janome 8002D. Anyone have experience with that machine? It seems like it would be a good place for me to start. It only has 4 threads but I think it will do what I need.
Oh, and wanted to add... I made a new version of the giant skirt. I took it down 3 sizes and then took it in over an inch at the center back seam. I should have left a little more ease in the waist, but other than that, the fit is pretty good, and I'll be wearing it to work. Very excited about it! Next up is a cute vest to go with it. I'm loving the quick nature of garment construction vs spending eons per quilt-- though I have some quilts in mind and will probably start working on them in between clothing projects. I need two of me just for my sewing!
Thanks again for all of your responses.
Best,
Ally