I agree with the others about the weak link at the bottom chord and top chord joint being so close to the tenon into post.
Tucker, Have you thought about placing your bottom chords on top of the posts? You could shoot past the post with bottom chord and place a purlin out there. Plenty of room for all the forces in the truss to work themselves out.
It just so happens I designed something similar for a pick em up truck park. Mine has a slightly greater pitch but the design sits low.
Wall raising....