A real expert would spend hours carefully honing the chamfers in the corners of this kit. I am not an expert, I just trim them so the outside corner is OK and then glue things together using Pound shop epoxy resin that fills up the gaps. Buying the cheap stuff means you can slosh it on and it's plenty good enough for this job.
The outside corners aren't perfect of course, but a bit of Deluxe Materials Perfect Plastic Putty soon sorts that out. Once dry, because I want to do this properly as a tribute to Peter, I cut each brick course with a thin saw. Yet again, I'm glad this isn't a warehouse...
The roof is joined with superglue and then braced with more epoxy. I'm keeping it lose as I have an idea that some furniture would be nice inside and since I don't have any suitable kits, or a desire to scratchbuild, I'll fix it on properly later.
One area to be careful with is fitting the chimney. This needs to be slightly inboard as the roof extends beyond the walls slightly, and the stack should be on top of the bricks, not fresh air.