Wheels..?

Could you post a photo of the damaged rim, it might be easier to make suggestions then.

Would it be possible for a wheel specialist to fit a replacement rim?

I'm not sure whether cast wheels are available for the T120.

 

Canyon wheels in CA offer cast wheels, but they ain't cheap. They also offer wire wheels I believe.
Also, a supplier called kkeracing offers tubeless spoke wheels.
Woodys wheels may be able to install new hoop on the hub. Google them.
Check Craigslist and/or ebay for used.
Good luck.

 

The rim is not too difficult to replace, chrome as well as stainless options exist. You would need a truing stand or have a bike shop do it for you.

 

I would think the wheels off a speed twin would work, but the are not gonna be cheap!