OMFG! Those handlebars are an atrocity!
Your bike looks like it's in a remarkable good condition, I'd say keep it that way and put on the kind of handlebars it was designed to have, not the stupid kind the sales people think the US market must have.
Search for CB900F handlebars from 79-80, they also had the 35mm fork, its a clip-on type meant to be mounted on top of the triple tree and slightly raised
You'll find them on the Entire-World-Except-North-America models.
If you want to do the wheel upgrade, the easiest way is to use CBR600 F2 wheels and a CBR600 F1 fork complete with brake system and axle. The rear wheel needs to have new bearings put in to use the 16mm axle from the 750 (not sure if it's 16, but bearings are available whatever you have).
Use the 750 steering stem with a 10mm spacer at the bottom, most Hondas use the same steering head bearings.
If you use a F3 front wheel you loose the speedometer output but it will fit, however you need to replace the rotors. An entire F2 front could be fitted with some additional adjustments.
Note, the F1 fork is 37mm so you need handles as well, CB900F 81-82 will provide.
The difference between the old skinny tyres and modern wide radials is enormous, this upgrade is well worth considering and shouldn't really alter the bikes appearance if done properly.
While you're fixing things, check if your bike has the plastic bushings for the swing arm. In that case change them for needle roller bearings! Your life might depend on those bushings one day and I'd take no offers on them beeing 1980 vintage as well. And throw those pods away, those carbs are notoriously difficult to get to work properly without the box.
All in all, a very nice Super Sport. Not many of them left