You could always fly into King Salmon and catch a short, 15 minute flight on a float plane over to Brooks Camp for all the Bear pictures you'd ever want, there is cabins or camping there.
From there you can take another 10 minute flight over to Fure's Cabin for a few days of hiking, the cabin is like $45 bucks a night that time of year and you'd have it all to your selves.
Plenty of fishing at both locations and both are in Katmai National Park.
Your rental car money could pay for your float plane fees.

BROOKS CAMP

[Linked Image from alaskatravelgram.com]

FURE'S CABIN

[Linked Image from media-cdn.tripadvisor.com][Linked Image from media-cdn.tripadvisor.com]