Thanks a lot for being soo specific. I like even the little details. I'm glad you posted pics of the flange. My cat was cut out while I was in class. Now I have to fab my own flanges, like what your doing. Now that I have a wire feed why go to the muffler shop eh?
I just checked that link for the fan and it seems to be a "pusher". So, your mounting it in front if the rad instead of behind it? I read the description, it can be reversed to be a puller, sa-weet. Did you notice that the kit didn't come with a relay. What will you use for the relay?