The only way to get higher bars now would be to get a tubular bar adaptor, ne bars, which might also mean new cables and hoses.
In case that's still an option you are considering, you really only need to get a longer brake line unless you have some super long / high miniape bars. I've done 2 different Storz with 7/8" bar conversions and only really needed a longer brake line down to the splitter.
You can reroute all electrical, choke and throttle calbes to gain a lot of additional slack. The hydraulic clutch line can be bent (carefully) to provide a lot of slack as well.
This worked great for me, as my initial thoughts on changing bars meant hundres of dollars for longer cables and lines. I did it for $115 for Storz adapter (used), $60 for a dual braided line kit for front brakes, and $20 for 4 different 7/8" bars from a salvage yard. Not cheap but not hundreds of dollars either. It made my C10 a serious long distance option for me. Before, not so much.
Of course there was the seat, lowered pegs and windshield change as well to go with it.