That fuel pump will work, but the connection locations are completely wrong. The stock pump has the inlet on the rear and the outlet on the front, both parallel to the mounting flange.
I would take that one back. If you have the original, you can get a rebuild kit from
Then and Now Automotive and make it like new.
As far as the tubing, other than it being the wrong size, it being labeled brake line is OK, as long as it is steel. It just needs to fit the connectors and have a hole thru the middle of it.
You definitely should use a flexible line between the frame and the fuel pump inlet to keep engine vibration from breaking a rigid line.
