You should be able to find out which companies are handling the assets / liquidation process.
I think you can then get on the list of creditors, if you don't get your items returned you'll be compensated financially.
It'll be a good idea to keep an eye on the premises for notices.
If there are other items in there you're interested in you could even make on offer on them.
There's probably a couple of legal bods on here who could advise you properly