I had not heard of the Celts using this term; i assumed it was something from the Greco-Roman sphere only.  According to wiktionary Rammaz means strong (only coming to mean ram in proto-west germanic); now Bukaz does mean buck already so it is kind of plausible. Maybe something like Hand ram: Bagmawaldōz (beam wielders),Gataslahanōz (gate smashers) Covered ram:  Rammabukkaz   That could work. Or something with those verbs?  https://en.wiktionary.org/wiki/Reconstruction:Proto-Germanic/wihslōną  https://en.wiktionary.org/wiki/Reconstruction:Proto-Germanic/saljaną     Also the axeman champion is called Slōgijanōz, maybe could be renamed to Slōgijanaz  (my understanding is -az is singular and -ōz is plural).

Fantastic image!

Salvage then, as has been just discussed: returning something (a ship) to a store (the Dock) and getting store credit (salvageable fraction).

Maybe you guys already decided on something, but what if you could like convert a ship. It is like selling or returning something to a store and getting store credit. You sell you ship back, and some of the wood can be used for another one