No plumbing question ..... Got an old riding lawn mower. Sears Craftsman model 917.270840. I cannot even find the model in the Sears web site. Really poor web site. Google found a few unrelated links on the model. I am looking for a side bag attachment or rear mount hard or soft bags. Found some Sears rear mount bags for $300. I cannot even verify that this Sears bag fits my mower. That is a lot of money to me. Do I have any other options?