RE: Band saw or scroll saw
I use both, I also use my table saw for ripping the ply. I have also been know to rip out some stringers from sheeting when needed on the table saw. A band saw will cut faster and cleaner than a scroll saw but for inside cuts the scroll saw is a must. A good belt/disc sander combo goes a long ways as well. I cut my outside cuts about 1/32 oversize then sand them down to final shape.
Anthony