Being minimalistic, you would only need a hand saw, knife, drill and a screw driver. Although a knife, small hatchet and a drill would also suffice. For bending wood you would need a fire. You don’t really need a steaming device, just the heat.
You can steam your ribs and coaming in almost any kind of tube or box and use any pot or water heater where you can fix a tube to the lid without it leaking steam.
For easier and possibly more accurate building if you’re not a craftsperson, you would also need:
- band saw
- table saw
- electric planer (elhyvel)
- plunge (also called overhand) router (överhandsfräs)
- electric drill/screwdriver
- shallow angle hand plane (the smaller one hand version)