Ricky you didn't mention what you can squat NOW I assume it's not better than 464 or you'd be the record holder. Even if you could squat 700# right now. What I'd do is break the record by a little bit, keep training. Then break it again and again until you top out. You'll be the guy who broke the record 5 times vs the guy who diod it once. capish?
That's what i'd do anyway.