Alternative stop light

I just need an opinion. Will it fit?

KR Taillight Taillamp Tail Light Lamp KAWASAKI KZ 1000 ST Z1000 KZ Z 1300

I Googled that part # quoted in the ad and it shows up as a Emco Taillight and it doesn't look anything like the one pictured. Maybe send the seller an inquiry and get them to confirm the dimensions. All I can say is something is funny with the ad.

I looked at that some time ago but one of the uk guys told me a kz1000 tail light is smaller so not sure how it could fit both

I think I saw a tail light on www.z1300.de/ some time ago, though they don't appear there now. They were non-geniune, and the lamp was slightly smaller than the original. It might be worth asking if they can help.

No it want fit KZ1300, it's a lot smaller, if i remember correctly the difference is about 1,5 cm in with. I bought one of them from klasa-racing in E bay sometime back (Manufacturer Part Number: 62-21522). If You count the dots on the bottom of the lamp, the one from eBay, they are 23 and in the original lamp are 29 with the space between them being the same. Also inside of the light is different, then the original, probably not the big issue but still. The screws are in different places as it is seen on the pictures. Hope it helps. On the picture here my 79' Kawa with original light. (Picture from eBay is for reference only, and if necessary ill remove it).

Thank you guys for a follow up!
I am still on the hunt for the rear fender with the bracket for the light, so at the moment I wouldn't have a place to attach it yet. .
I think I stay away from that light I posted link to. And yes, the KZ1300 site has lots of good stuff! I just can't afford a lot of it. Converting Euro to Canadian dollars, a seat for example would be around 900. That's way out of my league.