Judging by light camping all seems reasonable. Bring peanut butter, nuts or both. Trail mix, de-hyd. fruit etc.. I do believe that you ought to consider a tent rather than tarp. Small tents can be had at a low price. Figure on the seccond to, not the smallest, it'll make a big difference to you and not much harder to carry. A special roll-up mat to place under the sleeping bag will make a big difference. Between this and a non-tiny tent, the hammock is rendered less necessary. You can always grab a meat meal on the fly. Storing and cooking meat is problematic. Spam, tuna .....