There is an issue, I've read, about the heavy o' sode (shoulder-pads) on kachi for practical reasons, you'll notice in depictions that heavy infantry have much smaller shoulder-pads for mobility reasons, the shimazu and Oda daimyo shoulder pads would make perfect replacements.
Do you mean like this?
Spoiler Alert, click show to read: 


Also in more than one depiction they're bare-footed: that'd be a good illustration of their relative poverty and eagerness for war, casting aside basic comforts in favour of war-gear.
Hm, I know what you mean but the closest thing Ive come to bare-foot is some sort of samurai "sandals".

How about a naval warrior monk-hero unit on a medium sized ship?
Thank you! I will do that. What about regular warrior monks(renamned to Sohei actually) on light, medium and heavy ships? More morale and some other "weaker" things like speed or fighting capabilities?