Wanted - Sorting trays

Hey guys, I recently bought a massive massive haul of loose lego on eBay. It's all mixed up and struggling to sort it into each set so was looking for ways to sort it

I have one of the trays from the advent calendars which does help but would need a few more to be real effective. If anyone has any to part with that'd be much appreciated.

Also may be interested in the official sorting trays and stations if anyone has any of those, I can't seem to find them anywhere myself

Let me know, I'm in the UK btw
Thanks