You might consider sewing on some strapping..like I did with this--->
viewtopic.php?f=4&t=4624Here's a better shot--->

If you need to attach a set of straps at a certain spot,you can just handsew the middle point of a couple straps on the bottom about 8-10" apart..something that will carry the bag securely.I added straps sewn every 2" on this fanny/day pack on the front straps,on the sides over the top down to the fanny point,and a set on the back about 8" apart.
I can tie/hang anything practically anywhere on the pack..it weighs practically nothing(16oz).Inside it can hold the majority of small stuff...and the larger items on the exterior as shown in the pictures in that thread.I have another 6-8 small straps(included in the weight) with plastic buckles,use whatever i need for the trip and leave the extras at home.
Running the straps across the pack section(front to back) and handsewing/tacking just a couple spots across the straps say a couple inches apart and they should hold fine for holding bags,mats,main tent or whatever lighter,larger items are necessary for your trips.
If you get the strapping,it may be worthwhile to hire a seamstress or someone that sews,show them these pictures so they know what you want..and do a similar set with your light packs where needed.As it says in the other thread..The extra straps can be used for compression straps also by just sliding them through the sewn on straps and tightened more to the body if the pack isn't full.It is big enough for an over night and carrying everything but the last trip I took.I decided to add 96 oz of water in a plastic bottle instead of pumping it and changed my mind at the last minute.,took a heavier 2lb golite instead..

One more thing..the 12oz pack came with a couple strap attachments on the bottom already for strapping on a tent or bag..or your jacket if it needs drying or gets too warm out...

If the clouds are so thick you can't see the top of the mountain from the bottom..what the heck makes you think it'll improve the other direction!Realityguy