A "ships boat" is a tender to a ship - it is not a sub!
A "workshop" is somewhere to make things be it in a boat or on dryland - not somewhere to sell work (though sometimes you can buy things in a workshop if they do not have a shop where they sell their work) though can also refer to a practical seminar in a particular skill.
A "narrowboat" was originally a barge pulled by horses - but is now a cannalboat powered by engines whos power is measured in "horsepower"
"stump-work" is a form of woolen embroidery - not work done on a stump of wood being used as a workshop either on a narrowboat or a ship of the line (but stumpwork can be done in such a workshop).
A set of tools for a small work area in a small flat - I would recomend a B&D workmate and a table top that you can clamp onto said workmate , made from a sheet of MDF with a 4x2 screwed to the underside.
Worktop/vice/clamp in one packable package.
Add a plastic storage bin that will slide away under your sofa/bed and you can safely store alll your usual tools from drill and sander to knives and files, well out of the way
I hope that all helps