I feel your pain bobby! I had almost the exact same experience last year.
Hooked and played a bullet hatchery doe, easy 10lbs +...but I was on a steep high gravel bank and I just knew I had no way of landing it - too deep to wade in and shore too high for beaching. Now I'm not like some of the guys out there that get 5-7 hookup days fairy often and being it a fish of a thousand casts and not a wild I decided to take my chances. Finally tired her out to lay on her side and then steering left and right as I slowly decend on my butt down the gravel. Tailed and admired her for awhile and as soon as I tried to lift her out of the water the expected thing happend and the fish was on its way
After watching the whole thing unfold a very nice oldtimer came to me later for a chat and show me what he said he was using with success for many years in situations like this - he had a handmade version of a small gaff. It was basically a foot long piece of cord threaded to an 8/0 barbless hook. He said he would put it around his wrist and literally snag the fish out of the water. He was claiming that if you snag the fish in the belly that somehow paralizes and stuns the fish making it evan easier to retrieve.
Now, I know using a gaff for salmon is illigal and definitely not advocating it, plus how you are gonna explain a CO why your catch has a rip hole in the belly LOL The older fellow was very well aware of that too but he said that's what they used 40 years ago when it was legal and he just carries over with the oldschool ways. Again I like to emphasize that was a VERY knowledgable angler, definitely the type you just stop and listen with ears wide open, just love listening oldtime past experiences.
Cheers and hopefully you get a quick redemption