I am starting this project in my backyard. I have done several searchews and have come up with slightly different ways of doing this. The walkway is going to be 50' long by 4' wide. I am digging down about 4-5". Then I will lay a base. Is this correct? My main question is regarding the forms. what if they don't fit evenly side by side. Say they form is about 3' wide hoiw do I fill that 1' gap? The form won't fit int there. Sorry if I am not explaining it clearly. Thanks for any input.