Hello everyone. Long time lurker, first time poster. I just need a quick bit of advice. I was wondering how much you would charge for the following. It is a residential property. It is only the back yard (front is ivy/stone). The back yard enterance has an ungodly narrow gate. What it comes down to is I can only fit a 21" WB through it. The yard has virtually no landscaping, nor slopes. The cut area is a hair over 1/2 acre. Doing this with a 21" WB, how much would you estimate this at? I never use my 21" for yards this big, however there's no other option here. Any help would be very much appreciated. Thanks in advance.