consistently, there's not a lot on a No-Daichi I'd keep.
The sword is one of those things that's not on the list of things I'd keep.
In simple terms, if you're that close, punching is more likely to be more effective, and you get two tries instead of one for the same amount of damage per try-if you installed a hand actuator. basically, a sword gives you punching damage on a broader hit location table-at a fairly high expense in weight.
As a TSM mech, the base model suffers from a hard-to-manage heat curve with inaccurate weapons that are also ammunition limited, making it difficult to gain and keep the necessary heat to both function, and actually still keep moving.
TSM punches do quite sufficient damage on their own-the sword doesn't actually add to that curve, and unlike punching, you're as likely to hit their feet, as you are their head. This is less useful than simply punching (Punch table) or kicking (*if they have leg damage).
There aren't a lot of situations where a 1 in 6 chance of hitting the cockpit with a headcapper blow isn't superior, and having two chances instead of one? far superior.
So, I'd probably move the PPC and add a hand actuator, drop the inaccurate MRM for energy weapons and a heat sink arrangement to hit 9's consistently while in use, and the SRM rack for similar, while dropping the sword for...well...maybe more energy weapons and heat sinks, or jump jets or something that I can use reliably either to manage the heat curve so I keep the benefits, or take more hits, or maybe just a nice C3 unit.