Thanks for that rulle. I just tried your replacement wavs out in-game and I think they sound really good. I'm used to hearing just the default electric engine and submarine prop sounds so it seemed quieter than I was used to at first, but I do like it. Definitely more of a wet 'slosh' sound as the propellor blades churn the water.
If you were thinking of uploading somewhere, might i suggest
http://u-boot.realsimulation.com/
I also heard a rumour that subsim.com like to host mods too