Changing R34 4-door tail lights

[sparksflynn]

Changing R34 4-door tail lights

Hey guys, this is my first post on SAU, so I apologize if I've done anything wrong.

So, I'm wondering if it's possible to change the inner-circle of the smaller tail light on the R34 4-door so that it matches the inner-circle of the larger tail light. 

Would I have to buy new tail lights, or is there a DIY solution I can use?

I've included a picture of my tail lights. Basically, I just want the one of the left to look just like the one on the right. 

Thanks.