That is some beautiful rims you got. But seriously not worth the repair bro... The outer lip or whatever u call it already break. There is even the risk of vibration at high speeds due to uneven shape/profile...
I did the project coz I gave up my hope of finding a brand new (NOS or maybe from Taiwan) tail lamp. Basically, Mazda 808 parts are very hard to find nowadays. Once found, it is much better if you can save it. As for...