I can't comment on whats good enough. You should get a local engineer involved. Or work with someone on these forums (myself and others offer design and review services). Or contact an engineer from the TFEC: http://timberframeengineeringcouncil.org


Thread mount is OK depending on the circumstances. Really depends on what you need for uplift and sustained wind.

Bracing tends to work well in compression only, unless you've designed the braces to deal with tension. Again, I haven't seen a design, nor studied the loading of your site - so I can't comment on specifics.