Aviation cut & shut
Mechta is on the right track, the whole glider is a liability in that it is traceable, these aircraft will be re-introduced to the market as parts in repaired gliders.
I very much doubt that the parts will show up in Western Europe as the industry is well regulated. The place I would be looking would be Eastern Europe, the chances are there will be some remarkably fast & cheap repares going on.
Good composite repairs are difficult to spot by all but the expert eye so if you are offered a very well repaired component please check it’s provenance, especially if any data plates look suspect.