Sorry to say it Drew...but your a lil bit off in regards to the Chocolate cams & rockers for this particular model.
The 82 thru 84 Honda V4's had an oiling problem, the late 80's 750 Magna used a detuned VFR engine, THEY had the problems with cam lobes becoming pitted, Honda then "fixed" the cam & oil problems in 1985.(they didn't! lol) And in 86 it went to down to a VF-700cc not 750cc. (Honda sleeved down the engine in response to import tarriff rate hikes for 750's, and the Magna became the VF700C from 84 to 86.)
BUT-in 87 Honda then went back to a 750cc donk, and they completely restyled the bike which was then nick named the "Super Magna" V45, and the cams were line-bored and have improved oil ducts to "finally" eliminate the cam wear problems of the previous engines (the chocolate cam syndrome)
So there are actually no major problems with the 87-88 engines, Ive ridden a couple and actually nearly bought one

(Just cos they look sooo cool), very nice bikes (For a sport/crusier lol)...the only issue I have ever heard of for these models was the exhausts need to be checked regularly as they can rust out VERY fast and cost a friggin fortune to replace.
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