Hi,
depending on what you plan (fully clothing for bad weather or 'normal' clothing) RNLI crew people may be usable, but it's hard to find, because of scale and helmets. Allthough the german lifeboat crews also have helmets they are quite different. Nothing to judge as there is a huge difference in the background of sea, coast, funding, amout of ships and amount of volunteers.
I've added a photo where you can see the revell figure, still lacking decals. On board of the WILMA SIKORSKI is a 'pit-crew member' I found on a fleamarket.
When building the pontton I started to stick neodym magnets under the deck on reasonable positions. The figures got the opposite magnet between the feet or in the shoes, depending on the figure. Usually I mount a thin 0.5mm polystyrol sheet under the shoes, glue the magnet and then pain everything between the shoes in the floor colour they will stand on.
That way I have a huge variability wher to place the figures. Long term I plan a sunny weather set and a 'not so nice' weather set.
Best, Joerg