With a 30" draw, look for a Kodiak Special in 66". These are relatively common, but you may have to search a little harder for a leftie at your weight. I have a 66" KS from 1959 that's as pretty, accurate, and quiet as any out there. (It's not for sale either).
Keep an eye out also for the 64" Super Kodiak. These are slightly beefier without being big and heavy and an awesome example of a Grayling Bear.