Thanks Blash! Nice to start a project like that! Also single speed?
Actually it was my first bike that I builded from scratch, didn't have any problems at all.
The stem (brand is BLB, +6/-6, 25.4 clamp) is a normal 1 1/8"size, the forktube lenght was already good, only had to use a very small spacer.
In the meantime mine is a slighty bit more 'dramatic', since the old rearwheel bursted I installed a used carbon Spinergy REV-X.
Looking forward on the progress on yours!
Irvin