A home timber framing is one of those tasks that seems easier than it is. Most people are not ready with the total amount of burden needed to get the job done. Also, most people don't know to properly sync all the timber framing combined tasks that make up the design of the house.
The first thing you can do to make a timber truss frame roof with professional carpentry work at home much easier is to place the timber as close to the house as possible. This may sound reasonable, but you'd be surprised how much weight the timber dropped 100 feet from the base.
Try to build up timber first and cut as many pieces as possible. For example, if you pre-cut all timber window trim, you can nail them to royal rivets. When it's time to place a wall with a timber window in it, you can place the pre-nailed pins to the top side.
The same is true for timber windows and door heads or dwarfed window ends. If you take a closer look at your plans, you'll likely find that they all come in about three size groups. Take a few hours chopping timber all up and piling it all up along with all your crippling spines.
The reason is that timber needs a lot of free space to build and they need a lot of space to move around when done. Third, when you attack them, it helps to be refreshed and rested as they can cause problems.