I still think you may be trying to do to much with the basic portable kit and you would be better served paring it down and having task specific kits like electrical, plumbing, mechanical, etc. that you can select before you set out. And a very basic, basic kit.
But if you must... for the main kit, keep adjusting, if there is stuff you never use, move it out. If you find you needed X, add it. Adjust and refine as you go.
If you decide you must include wrenches and sockets (and not just an adjustable, pliers, and vise grips) for non-automotive house/farm use you can eliminate redundancy, for example:
7/8 is 22.2mm, so just bring 7/8, use it for both
5/8 is 15.9mm, so just bring 16mm
9/16 is 14.3mm, so just bring 9/16
1/2 is 12.5mm, so just bring 13mm
7/16 is 11.1mm, so just bring a 7/16
3/8 is 9.5mm, so just bring a 10mm
5/16 is 7.9mm, so just bring an 8mm
1/4 is 6.4mm, so just bring a 1/4
Add in the other common metric sizes like 12mm and 15mm and you are covered.
The above may mess with people's OCD, they may worry the split up sets will get lonely in the main box, or they may consider it blasphemy but for non-mechanic, around the house/farm use it does the job as long as they are decent and not the cheapest offshore crap one can find. Works well for wrenches and sockets, I would not do this for allen keys