I think it would be hella sweet if riot could make the in game "recommended items" for a champion customizable to you. I would love this so much more for a few champions i play that require me to dig through the store and waste time just to find and build them, but if i could just bind them to the recommended items area it would streamline the process much more and help get people back out on the fields of justice faster!

I approve of this, custom load outs like in the runes/masteries pages.

YES !
There are not caps large enough to express how much I agree.

this comes up a lot

the problem is, it would be a pain in the ass (at best) to implement. my "compromise" is adding an option to use the recommended items from Phreak's summoner showcases instead of the defaults. then it's just one more set per champ and some way to toggle it, wouldn't be totally customizable but at least you could pick the one closest to your build.

I don't think it would be so hard to implement. Make a client side file like the masteries and add a drop menu like the rune and mastery ones.