Rethinking !!
In consultaion with the all might DM...Michael will make the following changes to his plan.
He wants to add 4 superior pumps with appropriate fire hoses to the ship. two to each side fore and aft. One water cannon that can double as a fire house to the bow of the ship. One masterwork Ballista to the bow and stern section on swivels. He will even go so far as to try and recruit two dwarves who are master artillerts to man each ballista...
The ship will be reinforced in the sten and bow with copper sheeting and timber as they are the most vulnerable areas for ice. As the hull is being repaired and recaulked MIchael will have Willulm lead the crew in song concering seaworthiness, ice breaking, strenght, speed and endurance. Along the upper and lower keel and along the main rail Michael will have something similar to a 4x8 addeded the lenght of ths ship as a reinforcing beam. This beam will hold the inscribed wards for protection against evil, outsiders, fire, acid, cold and lighting.
These wards will be both sung into the wood as well as having pure silver symols, glyps etc stating it's intent inmbeeeded into the wood. Michael and the priestes will use there own magic to charge the silver sympbols, glypths.
Now..while he is in port, Michael will finally have time to use his magic to craft arms and armour etc.....as well as wondersou itmes. so he wises to create the following
5 silver wands that have detect magic on them at will using his invocation Detect Magic at Will. (Prevent someone from smuggling more magic onto the ship as well as coming in handy in raids

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He will enchant two of Guiesspeis 4pistols so that when a bullet is fired an extra 2d6 of eldritch blast damage is added to the bullet.This should help solve his problem in combat.
While on the subject of firearms Michael will enchant 5 masterwork long rifles so that when a bullet is fired from them it is transformed into and eldritch spear (a base invocation) that has a range of 350 yards and does 2d6 worth of damage. This will be the ship's long distance striking power.
Finally he will create 5 long spears that add an extra 1d6 of sonic damage , using energy subistiuons, when the strike or are placed in water..this will be a very nasty suprise for opponets of his water troops.
In regards to mundane items he will have constructed using the formula he already tinkered with the creation of depth charges using thunderstones as their base...Basically after a selected time exposed to water the thunderstones explode. Michael was thinking of something in a tin tube with several different holes that can be opened to either decrease or increase teh exposure to water........the depth charges explode with the force of two thunderstones....whiel not potiential that lethal they should be able to wreak havoc against water breathing assialts like the big ass shark he had to deal with much earlier.
Michael will spend his time mainly on the ship and trying to scrounge up any cargos he can that appear decent.
He will also post a notice asking for bids for a constrution project on Tergere, He wants the dwarves who are expert in stone to create the barrely vaults. Michae has changed his mind having visited with the Chierftian. The main ground will be gardens with row houses forming the peremiter and also function as a wall leaving a very large open garden area forming the celing of the Vaults. The vaults are 20 feet high which will allow three levels for climate controlled storage at a cost much less than the huge ass warehouse as well as leading more area to store just strung out more which in light of a few things may be a good area. There will be two three entrances to the main hallway to allow for better security etc...I l ike the idea of gardens in the center overlooking the piers and dock areas...think it will be spiffy and of course harder to fathom what may or may not be in the compound.