Purchased in May and started building on June 1st. Finished outside including roofing and painting by June 30th. 

A couple of areas we end to overcome:
A few of the 2x4s had enough of a bend they were replaced. 
The jig to build the dormer rafters didn’t provide the correct angle. We built the dormer wall and use the floor to create the effect of having the 4 walls up. 
Would suggest having pipe clamps handy, they were used in many situations including getting the four walls plum. 
We use cinder blocks and 4x4s to build the foundation. 
If you are planning to finish inside, you’ll need more 2x4s for framing that drywall wall can attach to. 
This has been a fun project!!!
Mark


The jig to build the dormer