Peter Reynolds documented his build of the DJH kit for the A8 in a series of YouTube videos.

• Part 1: Research, preparation and what's in the box (19:30)
  
• Part 2: The basic chassis (25:40)
  
• Part 3: Detailing the chassis (32:30)
  
• Part 4: Further detailing of the chassis (32:21)
  
• Part 5: Completion of the chassis (42:00)
  
• Part 6: Building the footplate (24:28)
  
• Part 7: Starting construction of the body Part 1 (28:39)
  
• Part 8: Further work on the body; barring the welded tank supports (20:04)
• Part 9: Continued detailing of the body, and a couple of cautionary tales (14:02)
• Part 10: Making & fitting the Locomotive Bunker, and one other major part...(27:37)
• Part 11: Further detailing (21:20)
• Part 12: The boiler (19:32)
• Part 13: More boiler fittings (17:26)
• Part 14: Finishing the boiler and a start on the cab interior (17:15)
• Part 15: Finishing the cab, and a few other things to attend to (24:18)
• Part 16: Assembling all the sub-assemblies, fitting the chassis and DCC, plus a test run (16:35)

See also John Cockcroft's builds of the NER Days kits for the A8 and the A6