Ok, I'm Sold! MNSMITH, because you discredit DJM, I will weld the perches.
I wanted to get the kit above (the single bracket kit that used existing perches) but couldn't find the right size.
So, I'm sold. I'll weld it, because of the overwhelming response to this topic and the expertise from Stovebolters. Not to mention, that apparently DJM tech support is very much lacking, I will not listen to a word more they say.