Training records should have been kept and Peter should be able to copy them for students, I suspect he will do this although difficult in the short term with the building being secured by the airport at present.
Otherwise check with Flight crew licensing, Gatwick.
Training still exists at Inverness but it is obviously it is in flux at present with only limited space.
It will improve and stabilise but probably not to the previous levels.
There is also training at Kinloss cheaper, more hassle in some ways but good, it depends where you live and your individual circumstances.
As per Mad Jock and others the flying is pretty spectacular up here but the costs have risen.
Can I make a request that we all get back to flying and try to help people out that have been caught up in all this. I am sure Kinloss will try to do the same. There are going to be a lot of students out there needing a hand.
Finally, with regards to the HAC requesting all the training records I would think this very unlikely to have happened and even more unlikely to be complied with.