You said you drew a tag but didn't say exactly where, Most of Raspberry island is heavy forest or thick alders. Kodiak can vary a great deal, but only areas have the heavy forest cover, mostly alders mixed cottonwood. with heavy grass that can be well over head high. Being a fall hunt , you will probably will be targeting bears on salmon streams, but if yours is a later hunt , you could easily be hunting much higher berry patches in much more open country. So the place and timing of the hunt will make a difference in the kind of shots you will be taking.Your choice of weapons is a good one ,and I would think your first choice in scopes will cover almost any situation,the standard duplex should serve you well.
But your time is already short , and the real important part is being able to us your chosen weapon, so get what your taking and get to the range, put as many rounds thru it as you can ,and even days you can't make the range , handle the weapon as much as you can , practice getting it up an on target, dry fire exercises are worth the time.