To go back to the original question... When it comes down to getting "extra" kits, I think that there is a few rules of thumbs:
- look around and ask the other "guys"
- uniform is uniform (ie, don't try to change what you are supposed to wear), on the "outside" anyway. There are many regulations on this...
- the whole point is to make your life easier, not enter a spitting contest
- during your career, you will spend an arm and a leg in guccy kits that you will only use once or twice (or ultimately, replace by an even "gucchyer" piece of kit)
- that stuff will travel a lot... and despite the "one-man-one-kit" policy, your stuff will still be handled by many people; most of them not paying to much care at not breaking it... (loadsmashers being some of them... Flight Engineers coming close seconds)
- when issued kit breaks, you get it replaced, when your guccy kit breaks...
- You will already have a whole lot of issued kit that you won't know where to store
- Finally, no guccy kit until you are at your unit...
My 2 cents worth.