Freelander 1 clutch master cylinder

I have tried looking but can’t find a precise answer, I’m looking at replacing my master cylinder now from research there appears to be a couple of different types of ends that connect to the slave end ?! now my fear is that if I get the one without the plastic collar I’m not going to be able to get it back out if the part fails again ! is it a case of simply taking the old collar off and installing it to the new end ? or do I need to get the one with correct end or is there a special tool I would need to get for the one without the collar , someone must have an answer, I’ve seen people disconnect the pipes and swap them over but ideally I’d like to swap the whole unit over , many thanks any info would be appreciated pictures of the ends in question

My advice is order oem from LR.
After market often result in the bite point on the floor and endless fruitless hours attempting to bleed the system.