Hi there Snoopy,
there are other options on hardware available, Prestwich among others do quality components and you can call for advice and speak to person if help in set up is needed.
Again, when it comes to pipes the Prestwich range take some beating, there are lots of American ones around, some are very noisy, and need additional stinger silencers not to be too anti social.
Wet pipe apparently do not give the same performance as dry ones. If you are hell bent on a wet pipe pm me as I might just have one for sale. Not sure I like the idea of water being in close proximity to the internals of an engine. That said, my motor has been full of water many times and so far survived well. (It is a Zenoah PUM260)
Glenn