As usual only about half the truth is getting out , the vilgilants could be sold but the MoD will only sell to organisations capable of inspecting and releasing the aircraft to EASA 145 standard, this is because of leagal liability over previous maintenance history.
The issue now becomes who is going to buy such an aircraft ? They will require substantial inspection and an engine retrofit as the current engine is no longer in production. My guess is that even if released from the RAF at a very low price the cost of the aircraft in fit for gliding club service would be in IRO £100k per aircraft and this only if a production run of ten or so aircraft financed up front.
While this might be achievable with the right customer you can see the difficulty as there are very few gliding clubs or individuals who are likely to have £100K to spend on such a project .