i have a traveller lite hammock. i have made poncho liner underquilt and got a full length car shade, an inflatable thermarest pad, and a peice of 1.5 in polyester batting that will wrap around my upper body. im using a oold shower curtain that was huge for a tarp. i have a 0 degree mummybag i will unzip and use as topquilt. i was wondering it this setup would take me down to abt 40 degrees?