When we built the second Loose Moose I pretty much used a Skil circular saw and a cheap Black and Decker jig saw. For a table saw, I used a cheap table insert that turned my B&D Workmate into a table saw of sorts... All told, I think my investment in tools in those days was less than $200 but they got the job done.
With the last Loose Moose I was lucky in that the hanger I built it in had some decent stationary tools but most of the work was still done with a simple circular saw, jig saw, power hand planer and router all of which fit into a smallish bag. Truth is you don't need much in the way of tools to build boats...
The one tool I do wish I had onboard "So It Goes" is a small table saw of some sort. I want to build new hatches (the Lewmars do what Lewmars do so well...LEAK) and it would be so much easier if I was able to have a table saw... That old cheap Black and Decker insert for the Workmate would be just fine but as far as I can see, they don't make them anymore...
Which is why I was so interested in this newish tool kit by Power8 which is a jigsaw, circular saw and drill in a cool case that does double duty as a table saw, drill press and so on. What a NEAT idea!
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The point, I guess, is that tools are neat and they help but you can still get the job done with simple hand tools, simple power tools or whatever you have on hand... But I'll let you in on a little secret that I'm not sure I can live without the DeWalt Jig saw... It's that good!