You would need to make sure that it has no coils in the top of it if you wanted to build a tower. Unless you were planning on putting a tap through that glass?
I have this same fridge but it's the 48 bottle one and I use it at a fermentation fridge but you can make it into a kegerator because the coils and all are in the back you just wanna remove the light and all the components
I have a similar one, glass door and all. The coils were in the back which made things a snap. I got a used SS tower for cheap(ebay) and bada-bing it was done.