cb550f

So i got this motorcycle over the weekend. Not having much luck finding replacement air box boots. I can only find ones that fit earlier models but not for this year model. Guess different style carbs used. I know this is mainly a twin forum but im hoping someone has found an alternative...

https://monterey.craigslist.org/mcy/d/monterey-classic-1971-honda-cb500four/7847505518.html not original but still pretty cool looking. seller will take $1800 for it but currently doesn't run. with what information is given, fair deal? any possible issues the CB500F had i should be aware of...