Make sure that the line itself is leaking, most times a leak is at a connection point, they just might need to be tightened. If the line was leaking from rusting, I doubt the motor would get enough fuel to run and the fuel would be all on the ground.
As for the steel-braided hose, the braiding is for protection and that type of hose is excellent for fuel lines, I use it on my race car. And you stated that it comes with OEM style fittings so you should not need any adapters, and as for the wrenching, they are standard sizes so special wrenches are not necessary, just don't over tighten them, THAT is what the AN wrenches are for.
The biggest issue I see with the braided hose is that will be thicker than the old line and you may not able to route it the same as the original. When routing it, keep it away from heat such as the exhaust system and don't worry, you will not be able to pinch it, the steel braiding will prevent that from happening.