Ill have to take a picture. I just converted my gf 7spd front and rear cable brakes. To 3 spd with coaster brake. It’s her first bc and she always wanted the coaster brake. She don’t even know it’s called that. Your lbs might have some older schwinn handle bars. That are the same styles yours but have more rise. I have a one installed upside down on a schwinn road bike. Looks cool. I sourced some high rise carbon fiber handle bars for a bc build I’m involved with. I just learned about redshift shockstop stem and they have a high rise version. There’s not much info on it available. They don’t even have any pictures of it on their Instagram. I asked they to post some but they haven’t.