I picked up some poncho liners a while back and have been working on making them into top and bottom quilts. I'm thinking they should be perfect for this weekend. However the next time I will be able to hand will be the beginning of Oct and it will be in Iron Mountain, MI. I'm thinking I should be ready for near freezing temps. So, I'm thinking of just adding something to my PL. I recently quit my job to start grad school so my budget is pretty small for this project.
My thought is to slide something between the layers of my PLUQ and make a slightly smaller TQ to put inside my PLTQ. I found Thinsulate 150 for $8/yd and 400 wt fleece for $6/yd locally. I've read good things about Primaloft and Climashield but I'm not sure that they are worth the increased cost plus shipping.
Anyone have any thoughts or experience with a project like this? I guess it might be helpful to add that I'm a fairly warm sleeper, but my wife, not as much.