Based on info around the web and your site I chose to replace all of the bellowed hoses (3) in the machine, as I did not know which bellow was leaking without taking the washer apart first. If one hose was old enough to leak I figured the others were not far behind. The appliance parts pros videos were very helpful, although I chose to replace the drum drain bellows via access through the rear panel thereby saving myself the time of disassembling the front of the machine, as was instructed.
In the end none of these hoses were my problem, but I replaced them anyway and learned a lot more about how the machine functions in the process. The culprit was an intermittent supply hose valve on our wall behind the washer. Occasionally it would leak, spraying the bottom rear of the machine, leaving a puddle running out underneath the front. Replacing those solved the problem and I'm confident that I won't have any leaks stemming from hoses inside the machine. I also took the time clean the mold that was accumulating in hidden portions of the soap tray. I used a HE tub cleaner (Tide) and ran it through a number of cycles to rid the machine of internal mold & scale not visible inside the drum.