Thank you for your earnest replies.
I figure I'd play a merchant who carries a chinese sword, since they weren't allowed to carry the daisho,
as for the gentleman who said you can't dual weild, it's correct, but the daisho was a symbol of status, had nothing to do with practicality, yet Musashi was known to use his wakizashi as a throwing weapon when in need, or as a extra aid to hold someone hostage, yet musashi refrained from using it on 1 to 1 duels, unless it was necessary...
If you can find me a picture with someone mounted with a nodachi and the intent to use it, I'd be very grateful, as far as I'm concerned they didn't see battle very often, and soon after Tokugawa consolidated power he cut down all the Nodachis in Japan down to a size of a modern Katana, some survived in shrines though.
It's somewhat of a mythical weapon, from my understanding... the precursor to the anime sword. Seems like the Tachi is more likely to have been the cav sword.
Another small question, I want to usurp a Clan, Takeda shhh what's the best way to go about this?