A month on and the insurance have just got back to me, they're replacing the tools (yay) but unfortunately the claim limit is "slightly" lower than initially proposed.
Meaning today I'll mostly be trying to trim about £1k of stuff off inventory of stolen items.
On a desperately attempted funny side, they were apparently unable to locate a 10kg welding gas bottle...
But staying positive, it seems that an end (albeit a slightly more economical and less satisfying one) is near in sight.
Thank you all once again for your support and well wishes, a month of eBay scouring hasn't turned anything up so I can only assume the tools were boot-fared away or being used - if it's the latter I hope they get tetanus!
Nearly Xmas, 'eh.
Thanks chaps.