Never weighed it then, but I am doing a similar trip (TGO Challenge) in just over a weeks time, with an almost identical kit. My final weight this time is 13.3k, of which 1.7k is food for the first 3 days.
A few items are at a parcel drop to pick up on the 5th day which will be extra, which are Trowel, Towel, Phone Charger, with a extra total weight of 260 grms.
Here is my gear for this trip + weights :-
Waterproof Jacket 529. Waterproof trousers 354. Gaiters 256. Fleece 260.. Baseball hat 54. Ron Hills 227.
Lowe Tee 130. Berghaus L/sleeve 178. Montane Microlite 357. Montane Windsmoke 102. Shorts 140.
Socks (Walking-spare) 78. X-Socks 35. Underwear (spare) 58. Trainers 573. Buff 38. Gloves 30.
Pan 1 Ltr 142. Soap 28. Army Knife 22. Pan 500 ml 161. Batteries AAAx4 46. Razor/lotion 20
Batteries AAx1 23. Pen 8. Toothbrush 17. brush 20. Phone 151.Toothpaste 24. Mirror 24
Knee support 34. Camcorder 598. Pillow stuff case 53. Flannel 7.Camcorder Batteries 28. Pocket rocket 111.
Wetwipes 46.Camera 215. Pot cozy 126.Toilet roll 62. Compass/Whistle 42. Pot handle 33. Toiletries bag 36.
Puri tablets 8. Deoderant 27. Drybag Exped 53. Reading Glasses 51.
Drybag Trespass 51.Reading Glasses(sun) 64. Drink Holder 44. Ear plugs 6. Rucksack 1800. Earphones 24.
Rucksack cover 71. Paracetamol 6. Emergency kit 34.ibuprofen 15. Eye masks 7. Skin so soft 52. First aid kit 68.
Clothes bag 70. Freeloader 415. Sunglasses 63. Tick remover 8. Gas 356. Sun-lotion 62. Glu-sul/Vit C 8.
Gas Tripod 22. Scourer 4. Gas windshield 61. Sleeping bag Alpkit 780. Headtorch 87. Sponge 10.
Lexan spoon 11. Spork 15.Titanium Knife 17.Lighter 15. Trowel 46. Maps/Notes etc 86. Micro towel 18.
Washing up Liquid 14. Tent 1490. Water holder 37. Mug 67. Midge nets 23. Clock/Weather station 97.
MP3 33. Wetwipes 46. Neo Air 415.
Plus what I will be wearing
Hope that helps.