A "zero with floats" is a Rufe, which is an IJN single float fighter that could also carry two small bombs.
A "Pete" is a biplane recon affair that could also carry two small bombs.
The Fujimi "type zero" kit with two floats is a "Glen", which is pretty purely a two seat recon aircraft.
A Ki-43 "Oscar" is an IJA aircraft that could do the job, but would have been operating from land.
I'd suggest the Rufe sounds about right, plus it's a really good looking airplane. Now of course, to most people in the Pacific, pretty much any Japanese fighter was a "Zero", so it's inconclusive, but is probably close to accurate for the 117. Lot's and lot's of companies sell these, and pretty cheap on eBay. You could probably get one for $ 10.