Here is a few pics of the install and how I did it.
Old setup- single 255 pump w/ 6an feed and return.
Remove old pump and install it along w/ the new pump onto arms. I ditched the supplied fuel lines for new longer and more flexible ones. This it what it looks like assembled .
To install the pump I released one of the arms and let it hang w/ hose and connector attached. I was able to snake the both in like this.( use some wire attached to the loose bracket to pull it back up to attach).
finished product-