Seems that the dryer is bolted to the top of the washer using the stacking kit -- so removing the top of the washer is going to be an enormous task, and beyond my abilities. And I'm not willing/able to spend the hundreds of dollars a service call for this would likely cost.
Upthread, someone had recommended using a sealant product to try to fix a front leak -- is there any more information about this? (How to use it, where to apply it, etc...)
Otherwise, I'll have to continue with my "towel in front of the washing machine to soak up the leaks" method...