you have to remember that pay pal, just like a credit card, takes their % off the total. You would need to compensate somehow for that.
Also I really don't see people going online and using something like paypal to pay someone who was just right in their yard. Granted I have several customers that use their online billpay thru their bank to do it, but that's a lot more "personal". It's their bank account directly sending you a check. No third party envolved.
You may look into seeing what YOUR bank offers as far as direct deposit type banking. See if you can offer customers a type of paperless payment system.