My DC5R gearbox used to do same thing. It used also pop out of 3rd if i was rough. It used to crunch going into 2nd if i launched the agro.

So took me ~2 weeks in total to fix.

I think it was about $700 for clutch and 2nd hand fn2r flywheel.

I think Sam took like 2.5k for the rebuild + parts.

say about another $200 on fluids, seals, resurface, shipping, metal clutch line etc etc smallar things.