It gets really tiresome reading this nonsense trotted out time and time again.
Every SRT caver uses second hand gear, all the time.
Club SRT kit..........second hand by multiple ' hands', used by trashy beginners (as we all were once).
Club rope.... Wow! How second hand is that? I mean, really. You have no idea how much use it has had or who used it last.
Pre rigged Gaping Gill ropes anybody??
Rigging krabs? Club slings? In situ tat and deviations? (Failure of an essential dev. could easily be life threatening)
And.. The OP has been caving on a multiple second hand Triact since day one.....
Nowt wrong with second hand kit. Assess it like you do all the other second hand kit you use every week.
Exasperated rant over
And joy to all the GG cavers...... You'll have a good time whizzing down and up all the second hand crucial kit!