Well it did rain, and I kept my boots centered under the hammock and tarp. The rest of my stuff would have fit there and would have been fine. I have a cheap and light 8x10 ground tarp that I could have put down and folder half over my gear to keep it pretty rain proof.
That night, I put my helmet and jacket in my top case and my pans in my soft bag (just forward of the top case.) That was easier. Let me know if you have any other questions!
I purchased one of these a little while ago and have been extremely happy with it so far. It's a great price for what you get. http://www.amazon.com/OUTAD-Waterproof-Camping-Footprint-Sunshade/dp/B018W12LSC?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00
You want some thing cheap and under 1lb? https://www.amazon.com/OUTAD-Waterproof-Camping-Footprint-Sunshade/dp/B018W12LSC/ref=sr_1_2?ie=UTF8&qid=1516063870&sr=8-2&keywords=outad+tarp