Sea Explorer Villager - Boat With Chest

The idea is this;

A New Mod / Villager, Sea Explorer Villager - The Captain

The villager will go out and explore the sea and gather materials on his travels,
To activate this you would need to craft a boat with a chest and put the following items in to the chest.
1)  A Compass
2)  A Bed
3) Food (for the length of time his is to travel, 1 item = 1 Day)
4) Tools for the items you wish him to mine for
   An Axe for Wood & Saplings 
   A Stone Pickaxe for General Stone
   An Iron Pickaxe for (possibly) Iron, Gold & Diamonds ect....
   A Sword for Meat
   A Shovel for Sand & Vegetation 
   A Fishing Rod for Fish and Random Items (Like Fishing)
Additional Items
- Map(s),
If there are no maps in the chest then there could be a possibility he could get lost & never return
Short journeys < 3 days he will return.
Longer trips (Days) & the chance to get lost
>7d - 1 in 10,
>14d - 3 in 10,
>21d - 6 in 10 ect....
The longer he is gone the higher the chance, but if there is a map then the likely hood is he will return, more maps for longer journeys? also populate said maps too?
- A Crafting Table,
When you put tools in the chest, they act like they would if you were to use them, so if a stone axe lasts for say cutting 50 logs, then he will only return with 50 logs for that axe, BUT if there is a crafting table in the chest, then he can create more & more likely to return with a full chest.

When he returns, all the items you added are gone, the boat is just a boat, but the items mined are yours to collect.