If you are going to be getting away from the truck/trailhead I would strongly suggesting buy once cry once. Enlightened equipment 0 degree quilt would be my suggestion. You can start with a foam pad and move up to an air pad as budget allows. Based on your comment about not wanting multiple bags I would lean even harder to the EE quilt. When it gets warm out you can just uncover like you would at home. When it is Super cold out it will keep you warm. Mine is great and I am a cold sleeper.
what temps have you pushed that EE quilt to? I'm about to pull the trigger on a 0* EE quilt (long/wide). I'm 6'2" and 215lbs. Mummys are okay but I get sick of being restrained. I'm a side sleeper.
I'm also getting
new boots
exo 5500
tent
range finder
and I just got an in reach last weekend
and i could use new base layer preferably Marino, and why not a puffy while we are at it
what id like to not get is a divorce haha so I am looking to hold to a particular budget for this year and on a bag id like the best i can get for around 150 and realize it wont be the best there is
I think I would use the closed cell pad underneath the inflatable pad to protect it from punctures.I couldn't agree more with needing a good pad underneath you to stay warm. One trick is to bring a cheap closed cell foam pad (ridge rest, walmart special etc.) and put it over your inflatable pad. The only real downfall is they are bulky to pack in but they weigh next to nothing. We used to do this all the time before we had the fancy thick pads that are all the rage now.
Other benefits is you have a back up pad that won't pop(cause they all will at some point), they are awesome for just sitting on around camp or while glassing and they make any excellent splint for a broken arm or leg in emergencies. Cutting them down to 3/4 length saves some bulk and the other 1/4 is a great glassing seat. This can definitely help stretch the temp rating on a so-so bag. Draping that emergency space blanket thats been sitting in your pack for years over the top of everything will help too. The good ol water bottle filled with hot water and wrapped in a shirt works too. Cheap stuff can work fine if applied correctly. Good luck