Bedding might help keep the wood swelling issues down from dunking in a river. Maybe give the inside of stock a good drenching in tung oil or the like since it's generally unfinished wood in there so river water won't soak in as much.
I made a little rig for running water down the bore without getting it all over the place. Drill out a fired x39 shell, glued in a length of aquarium hose, other ended glued in a small cheap funnel.
Drop the "shell rig" in the chamber pour some water in and don't have to pull out of stock.. When you can do a deeper cleaning than do so. Small and light system for the bore anyway. Doesn't properly do the gas system but at least it's something.
may your commie rifle deal with as many Canadian commies as possible. How ironic is that.
I use a Turkey baster