Dry exhaust to wet exhaust

looking at changing a 60' boat from dry stack exhaust to wet exhaust thru the side of boat or under water exhaust, engines are 8V92 normally aspirated 350hp, large stand up walk around the engines size engine room , I believe parts should be easy to find ? And it should a fairly simple to find or fabricate pieces , am I missing something?, the boat is a flush deck trawler and I would like to remove the dry stack because it comes right thru the center of the salon/galley and has a 4'x4' surround around it for heat and fire protectection ,it justs awkward, and really feels like a huge elephant in the middle of the boat,plus they are messy at the marina with all the soot,I have seen other exact models of the boat with exhaust out the side so I know they were built both way at the factory, what do you think it will cost in parts and labor ?

Thanks for the info guys, I figured it would be round $15-25k, I am looking at buying the boat, it’s a lot to spend but the amount of usable space and the increased ergonomics on the main deck and flybridge gained it make sense to me, by running the exhaust out the side of the amidship where the engines are am I going to get a lot more noise and fumes verses out the back ?The nice with current dry stack is the aft staterooms have more space because there is no exhaust running thru the boat

Thanks for all the input ,hopefully I can get these pics up the boat with the dry stack and a sistership with side exhaust ,if I remove the fiberglass structure that encloses dry stack, I will have to install joist to tie the ceiling together and sheet the bridge deck ,probably be a good idea to put a support pole in, I should be able to sell the dry stack parts? The fiber glass smoke stack on the bridge looks to be really heavy,, the exhaust would probably go out the side at the waterline behind the stabilizers

This is the sister ship with side exhaust , I assume it’s at the waterline or the same level as it would if it was ran to the transom?it looks like there is a big muffler running on the starboard side below the port hole in the engine room, looks like the side exhaust is at the waterline in the picture

Does anybody have any experience with these 1980s vintage lien hwa trawler yachts? they all seem to be coming of the age and the fuel and water tanks area going bad and the teak decks are leaking and creating dry rot and water damage ,but it seems like the hulls are solid bullet proof fiberglass ....they don’t seem to be built nearly as well as a Hatteras, but if you can buy them really right they woukd make a nice liveabourd

I don’t think there is room to put an under water muffler, I think it will have to out the side at the water line

Thank you capt holli that’s good advice

Rcrapps I think your on to something there, brass stripper pole ,turn on the red lights,and recruit in a few dancers and use there tip money to do the project , I wonder if the boat yard will have a problem getting paid in ones and lap dances?