I rarely fish over 350 meters, but in this one lake I do. This is a big lake surrounded by steep, rocky hills so there is not many places one can set up for the night. And I got a fair bit of braid on my Shimano Big Baitrunner L/C reels
I completely understand what you mean about doing things quiet, I would not dream of using such a boat (if I go for the 24v option) in a lake where there was other people fishing. I've been fishing in Denmark and its a bit different where I live. I know if I was to set this boat out in a Danish carp lake I would probably be chased down by a lynch mob with pitchforks and torches

but here in Western Norway there is practically nobody fishing for carp so I won't bother anyone.
Have you seen the bilge pumps in use on a boat? If you got some pictures or video it would be really interesting to see it.