All the spares you need are just down the road, plenty of L1011's at Victorville, just take your spanners & help yourself!!!!!!
As mentioned it's the joy of operating an aircraft that has been retired from airline service. Going back a few years you could get L1011 parts easily (recall a NLG retract actuator on loan from Saudia just after GW1 & a battery charger that they forgot to give back to Air Canada!!!!).