Hey Tony, yeah I hear you about the current.
I've geared up a 12 foot rigid inflatable with a 15hp on the back, flat casting floor and rocket launcher for 4 rods, I will be transporting it on the foredeck for offshore passages and tow it around on the flat. She gets along at about 18 - 20 knots with 2 on board. It should be ideal for lagoon work, but still managable on the reef edges if I'm careful.
I reckon that setup should be good for PE6, any heavier and I'm more likely to end up ON the reef rather than beside it! I can see me doing a bit of jigging straight off the back deck of the yacht and some longcasting at anchor with the longer rods. I'm hoping to catch up with a mate on the way north (who owns a 6.2m centre console) for a bit of mother shipping as well.