Installing the brackets can be a little difficult because you have to space them evenly throughout. I recommend you make it easier by gluing the corner ones first, then the middle ones and finally working your way inward from there. Install them all at the same time so that the glue does not dry and you can move them around until they look even.
Like with everything else on these dollhouses, making hard measurements will not help you much. I recommend eyeballing the brackets until they look straight and evenly spaced. Step away from the dollhouse in order to get a better view of how it's turning out.
I had a lot of destroyed brackets that could not be fixed so I had to make my own.
To do this place a good bracket on top of a balsa wood strip, of the same thickness as the kit (1/8" thick). Use this bracket as a template to cut it out of the balsa wood. A sharp craft knife (X Acto) cuts right through the balsa without strain since it's such a softwood. This allows for you to cut all of the intricate corners of the bracket but it won't be perfect yet.
While holding the good kit bracket together with your cut out one, sand your new bracket so it matches the template one. A fingernail file will give you the best results. Balsa wood sands very quickly and easily so be gentle so you don't take off too much. That's why its best to do this with the kit bracket held against your new one. That way your file doesn't go too far and removes detail.
More than half of my brackets had to be re-created but you can not tell the difference between the kit ones and the ones I had to make.
Using balsa wood this way, allows you to make any missing or damaged, piece from your kit. I even had to make the corner porch pieces this way because they were damaged beyond repair as well.
