Hi Eric and Welcome. Great looking cruiser in the best colour.

A year to prep sounds like a pretty determined build so good luck with it. There’s plenty of info on here and friendly helpful folks too.
Amayama.com for new parts online. There’s also Partsouq and Megazip but I haven’t dealt with them personally. Roughtrax in the UK are very good but are not specifically genuine parts, though some are. Then there’s our own Karl Webster for used parts. Any motor or alternator replacements or rebuilds contact Mike at Robson and Francis.
Good to have you aboard and Welcome to cruiser ownership.
Best wishes
Rich