Yeah, I've done the cut-with-a-soldering-iron thing before and fitted new hoses - not too hard. You can buy an injector reco kit which comes with new line filters, seals etc.
But first, you might want to double check exactly where the leaking is coming from. I've had repeated problems with the black-phenolic-bush-adaptor-mount thingys cracking, so that fuel leaks from the lower ring seal. So in my case, replacing the hoses it made no difference because they weren't the course of my problems. I have a hunch that the busted adaptors might be caused by ethanol (or some other additive) in the fuel making the seal swell and crack the phenolic.