It will be interesting to find out about the filters condition after you cut them and the condition/color of the drained fluid also. I never owned the 1100 series- wish I could help .
Thinking about just changing that line out putting the cap Over the valve off on mine that doesn’t have the Line and plugging Where it goes into the charge pump I’m gonna print out both parts breakdowns and compare them I’m a little worried about reusing mine cause I don’t think I’ve found the problemsorry don't know. maybe different years? the only x1120 i have been around had the line you refer to but that has been quite a long time ago. are you considering taking the salvage unit apart and use the internals on your machine?