Get those lines repaired by a competent hydraulic hose shop- they will be better than the OE replacements. I have an excavator (3 cyl Yanmar diesel!) that burst a line that was constantly flexing. The burst strength of the new hose is 3500 psi-I don't care how good your oil pump is-you won't pop those. Many of these shops have a hand held crimper for A/C lines- mine were repaired on the car. Cost 200.00 complete.