The Street 500/750 aren't really cafe racers that typically use rear controls for the lay-down road racing style of rider position. At the same time they're not a cruiser either. They're that in-between motorcycle for normal street use like the older mid-size motorcycles of the past.I like the Street 500, but I'm 67 and my body doesn't like the cafe' racer body position. So...bought the seat that moves you up and back, the handlebars that reduce the reach and move back about 2 inches, added a 2 inch high wedge shaped door stop to brake pedal, rotated the mirrors forward and added extenders, and am going to raise the gear shift peg about 1 inch.
Also adding windshield, luggage rack for a trunk, engine bars, center stand, and small leather saddle bags.
I believe it will be one comfortable but nimble riding 500cc.... Even for a 67 year old.
Possibly adjusting the motorcycle with a different seat and handle bar combination for comfort in riding the Street 500, as with any motorcycle, is always advised and I believe you've taken good pragmatic steps in addressing that. Rarely does any motorcycle "fit" perfectly from the factory based upon my personal experience and I've always made minor tweaks to address that including seat changes and handle bar changes if necessary. I've also moved the foot controls because they just didn't feel right for me.
My point would be get it the way you want it because you'll enjoy it more because of those changes.