Seems a little steep for a non-runner.
As mentioned "it only needs a carb cleaning" is the biggest bunch of BS since "I'll pull out in time".
If the spark plug hole in the head is stripped, it's an easy, although not trivial, repair. The head would need to come off, I believe, to safely install a HeliCoil. The HeliCoil itelf will cure the problem forever, but again, I think the head needs to come off. Which isn't hard, if you're an experienced enough mechanic and have a manual to follow, but there you go.
By the way, those exhaust pipes are not original. They're nice enough, and will be fine, but they're not the originals. Overall, though, it sure is a sweet looking bike.
I dunno... If you're a beginner, and are just getting your first bike, I'm thinking you may want to hold off and get one that's ready to go. You're going to have your hands full enough learning to ride, etc. without having to learn mechanics (if that's where your skill level is) into the bargain.
Once you're a more experienced rider, etc. then think about getting a vintage bike that needs some work.
OTOH, if your mechanic ability is there, you have routine tools, can use 'em, arent' trying to do this in your apartment complex's parking lot and all that, I don't think it'd be TOO much of a challenge. I mean, there are carb-cleaning tutorials out the ying-yang out there. Same with pulling the head.
Good luck, whichever way you go, and I'm looking forward to the pictures.
Kirk