re: guitars

if you’re experienced enough to carve then i think your only only issue is accuracy, make and draw a plan and stick to it. neck and body joins have to be exact. the best place to start is things like what hardware the guitar has, this will give you information about the height of the saddle position off the body and thus the neck angle. id also consider buying woods from a tonewood supplier as they will be able to give you advice about which woods to go for and can provide you with cuts for fingerboards etc. they will also be able to provide you with a lot of good information regarding building. frets are the most difficult bit in my opinion, and it’d be much easier to buy components and just assemble it but you wont have as much fun and the results wont be as good..
id recommend “Building Electric Guitars” by Martin Koch as a good bit of reading material, it focuses more on electric guitars and i think would be more relevant to you. i look forward to seeing the results.