One other thing that I have been pondering about my Keg-Fridge conversion...and it may apply here... How do the Fridge shelves tend to hold up to 5 gallon kegs?
I ask because at present, I have my kegs sitting on the bottom of the Fridge (not on shelves). However, with the compressor hump, I can only fit three kegs across. If I used the shelving system of the Fridge, however, I could sit the kegs on the shelves of the Fridge and I could fit 6 easily then...

(and in my story a ray of light from heaven shines down upon my fridge...

)
My concern is that even though the shelves only span half way across (so I wind up with 4 brackets supporting the weight), with 6 kegs (or even three), that seems like a lot of leverage on the shelf supports! (Figure about 40 to 45Lb per keg... and suddenly I am expecting the shelves to hold a grown man!)
Anyone with experience on how much weight the shelves in Fridges tend to be able to hold?