We have an outside patio wall with a 14' gap that needs to be filled in. We want to use concrete block and then cover it with stucco to match the existing wall. We are worried about doing the foundation properly so that it will be straight but don't know exactly what to do. We know you have to put rebars in but are not sure how many, if anything needs to be on the bottom of the hole that we have dug - about 2' down - etc., etc. any suggestions?