Hikerboy1 - sorry I hijacked your thread, I thought it was pretty much at an end when I posted.
BurbMan - thanks for the feedback. I just ordered a PD9260 two days ago, planning on doing what RoyB recommended. Looks like dimensionly the PD9260 won't fit in the WFCO space so can't do what you did and run parallel wire. I bought a new breaker to run AC wire to the front near the batteries for the PD9260, will keep the WFCO hooked up so will have ability to run the WFCO if the PD9260 goes down. What I was a little fuzzy about was hooking the output from the WFCO into the output for the PD9260.
Mbopp - did you run the IOTA output through a fuse before the battery? Did you wire the output of the WFCO through the IOTA DC output to provide path back to distribution panel?
Terry