First do some research. Use the Search forum function here on the forum to check out builds for this kit. The hulls for these plank on bulkhead kits generally follow a similar format; transverse bulkheads attached to a longitudinal backbone, some sort of deck attached for rigdity and then the hull planked, maybe two layers.
I believe that it’s possible to build the hull with what you have by carefully reading the instructions. I would sort out the kit contents, putting away parts that you won’t need until later in the build. Then try to match parts with your instructions. The bulkheads need to go on the backbone in a specific order. If you don’t get a fair (nicely curved) hull they’re in the wrong order. Hopefully they’re marked with some sort of logical code.
Once you get a planked hull, if you can’t find drawings than you might want to invest in some good commercial drawings of Cutty Sark not made by the kit mfgr.
Many kit builders complain about the drawings provided with kits for rigging these models. Again there are accurate sources for rigging Cutty Sark when the time comes.
Don’t look long range. Focus on discrete steps with the information that you have. Dry fit parts, stand back, and examine your work until happy with the result.
Roger