What's a likely weight, in pounds, for a skinny 5'7 guy (skinny because he tends to forget to eat and is underweight, though not unhealthily so)? One of the sites I found on the character says he weighs 110 pounds, and I would go with this if it wasn't for a girl four inches shorter than him and not overweight being listed as 24 pounds heavier than that. I have a suggestion of 154 pounds - does that sound right? I suck at judging weights.
Similarly, I need a likely weight for a healthy, athletic guy of 5'10.