Thanks for the reply Timbeal. I like, and agree with what you've suggested..I was planning on doing the braces the same size on both floors I hadn't noticed they were of a different size in the drawing til you pointed it out, thanks!
When you said "adding full length top plats to which rest rafters on" did you mean plates that run between the bents?
We originally had no splice atop the post on the long slope and planned to raise the entire bent as a whole but then thought it would be easier to do a floor at a time and do the lean-to section seperately..maybe not all that practical?