SVX gas tank

Months of fiddle have finally got electricity to the fuel tank pump in my '95 SVX, still doesn't go. Removed cover, hoses, electrical bits and whatnot, tank is big mess inside. I found an old post that says to "remove the gold clip in the middle, remove pump, etc, through passenger side door"

Fair enough, but this car sat outside for years, and water seems to have gotten in there, everything covered with brown slime and rust, nothing that looks like a clip, or is gold colored, is evident Anybody have a picture, or diagram of how to do this?

While we are here, how do you clean out the tank on one of these things?