I have a brand new, never out of the stuff sack, Sea to Summit Thermalite Reactor mummy style bag liner.
I bought it for an overnighter as a "just in case", and never needed it.
It is brand new, unused.
I paid $55
Would like to come close to breaking even.
May consider trading for comparably valued items if needed.
a good quality youth backpack (11 year old daughter)
small tarp suitable for good coverage (WBBB)
+ or - cash if necessary