Used versa lok block, pinned it together and stepped it back. Home owners wanted the block look but bought all the materail etc and found out it was more than they thought it was to install. So I get a call and did it. Alot of extra digging and two windows took around 120 block and the other back yard window took around 200 block plus caps. What do ya charge? I still had to get more block, fill material, more pins, glue etc.