Current setup is
Warbonnet Blackbird 1.7DL
AHE Jarbridge River 3S Underquilt
DIY Climashield Apex 5.0oz Top Quilt
So with any luck it should all fit with a little room to spare in the LST and then fill most of the dead space inside the pack which is a Golite Pinnacle pack.
Edit: flatline got in before I finished typing. Thank you for the info flatline. Might keep a few more things then originally planned in there.