Congrats! Looks like a nice guitar! I have a 322 that has Blackwood back and sides topped with mahogany. Almost, but not quite, too mellow for me as I'm not that big on mahogany tops, but your's sounds really intriguing with a spruce top. Best of luck with it!
PS - I replaced my tuners with a set of Shallers Grandtunes with a copper finish that was very close to the originals and the 18:1 ratio is great. Might be hard to find a single for purchase, but I was very happy with the French eBay vendor named "fretdreamer"I got my set from.
Best of luck with it!