Get ready to pay a fortune. I would look for used lines if you actually plan to patch up your ahc system.
I highly recommend just deleting the system entirely. I've been super happy with my OME/Ironman suspension.
Went camping in Holcomb Valley. That's twice in 1 month! Recently installed a vidalmetalworx 100 front bumper. He's in SoCal. It's a really nice bumper, and fits great. He also makes DIY weld kits. I was lucky and he had one in stock, ready to bolt on (minor trimming needed for LX470).