The set with the tightest bends is 1,2,4. If you hold the lines up the connection that goes to the pump should make a circle. Did you split them up individually? They will only go one wayand fit the cylinder they belong to and still line up to threads on pump!
If they are all seperated out on the bench, you can line them up like they mount to the head & get a general idea of how/where they go. Then take 1 of the L brackets that bolts to the manifold, put it in a vise and assemble them. There should also be some wear marks on the lines to see where the isolators go.