I just recently converted sea rigs to a self contained bundle object. It can be placed on any map and I even made a PCO version so it could be added server side!
As you can see it works. Lightmaps not working for obvious reasons.
If anyone is interested I can post up the files for all the sea rigs stuff including my custom interior lightmaps and the animated seagulls.
First I'll need to fix a few things. There's a few ladders that aren't scaled due to being part of a bundle and a few pieces of the rig don't have collision for some reason. I will make some tweaks to it and should have it ready then.