Hate to burst your bubble, but props just don't work up here. Zodiacs aren't much better. I hate being so negative, but I feel I need to be honest. Our rivers are swift, most are filled with glacial silt so you can't see the bottom. You can be running along when suddenly a sand or gravel bar will appear reaching all the way across the river with only 3 to 4 inches of water. You won't know it's there till you hit it. That's why we all use jet pumps on our outboards. We'll cross it and hardly know it's there. With a Zodiac when you hit a gravel bar, you come down off step, you have now traveled upon the gravel bar a little ways, the current turns you around piviting you on your motor, the gravel and rocks under the water will tear the fabric loose at the transome. Now your gear inside the boat will get wet. You'll be lucky if the keel is not punctured. Anyway your prop will be shot, and now you will be in serious trouble. The fast current will take you downstream fast, into sweepers or logjams. If you somehow go into the water, you need to make it out fast. In a matter of minutes your clothing will fill with silt, and no life jacket made will keep you afloat.
Now the Chena that runs thru Fairbanks is not glacial, it's clear water. Some years it would be suitable for a Zodiac with a prop, if we get high water. Most years no, it's just not deep enough. You need a jet. Zodiac's have that weak point, where the transome meets the boat. It's too easy to tear out the transome on logs, sweepers, gravelbars, stumps, and rocks.
I grew up on the Cumberlan river in Tennessee, it's just a lazy flowing river, easy to float. I was not prepared for the raging torrents we call rivers here when I first got here. They scared me so bad it was years before I got a boat and ventured forth.
The Little Salcha river just south of Fairbanks can also be run with a prop on years when we have high water, but not normally. It's also a clear water river. Stay out of the Tanana, and Wood rivers. The Yukon would be more forgiving, but it's like a lake it's so far across.
Come moose season, all out local rivers will be extreamely busy with airboat traffic. Airboats are what the outfitters and a lot of locals use. The rest of the locals use boats with jets. The rivers become extreamly busy.