well with out your measurements is a little
complicated to help you out..
i make you a deal, show us some pictures or tell us more about your specifics size and I give you some advice
I can tell you a few things.
* the bend(sweep) on the bars is less noticiable when the bars are almost flat.
* the bend on the bars become more abrup and botter some the higher(forward) than you move them,.
*I'm sure by now you find out that everytime you adjust the bars on one axis(front to back) is a incredible affect on the Up and down or viseversa,in short no way you can really win.
*the stock bars can be adjust to a "okay" level of comfort but will impossible to make them perfect,,unless you are about 175cms with really narrow shoulders and pretty long arms,,think Female japanese Anime caracter,,for the rest of us is a always a compromise.
*the wider the shoulders the wrost the bend on the bars is going to play a effect and the more pain you are going to experince this is all do to the lack of aligment of the palm of the hand in respect to the fore arm,elbow, shoulder,in short your wrist is taking to much unwanted angular loads,again the wider the shoulders the more abruptthis angles become,.
* the stock bars can not be cut any shorter since they mounted on isolators
* if you are willing to losee the heated grips and the bar ends you can install a variate of 7/8" handlebars that fit you needs better(most of the time you need barbacks to compensate.aka added cost,since the aftermarket bar are far smaller [lower] that the super tall OEM bmw bars)
*if you work a little harder,you can fabricate special bar ends inserts to be able to run the grips and the weights...
actually even if nobody believe me this is the BEST possible fix for the stock handlebars...sOmEdaY SoMeDay this theory will be accepted,,so far i'm shotting a little "ahead of the curv"
yeah use bar backs forward
this way the bars can be move really flat,making the bend less of a issue.
the other great thing about the sistem is that the grips are pretty much at the same place as before,,exept now they are lower and a little closser,increasing you reach but kepping your hands far lower(as uppose to almost horizontal with the ground,,,BaD IdEa)yeah the tank bag will work,,what else can you ask
I hope this helps,,give us some measurements or pictures and we can do some more focus advice