jubilee clips on fuel pressure line? - are you serious? - you need a clamp like this
The fuel line that you show is very taught already - lengthen it about 3 more inches.
For the filler pipe - you could have asked the fabbie to use a modern click style fill neck - this old accord had a very oldschool tighten to seal system whose caps are no longer available.
The reason it rusts out is because you are missing the plastic shield cover that goes over these pipes in the wheel housing. Its missing in 99% of the cars in Pakistan. I had to buy one from outside Pakistan. It was a lifesaver, it also comes with a rubber seal to jam against the body so water does not get trapped in it.