I think it looks pretty good. I would do a prep trip with the tent but set up the fly like a tarp using only guyline and stakes. You can experiment but have the back up. A one person bug net is like $20 online that is pretty cheap to save so much weight. If you like the tarp but want something lighter or a different shape you can buy a section of heavy duty plastic at the harwear store for next to nothing(worked for colin fletcher). Plus one on making a cat food can stove (google directions) this way you can bring your whisperlite on the trip but have the cat can stove as well(weighs very little) or at least the experience of building one in case you decide to lighten up a bit for almost free later on. The whisperlite is bomber and you will be happy to have it for groups and winter hiking but many people end up switching to alcohol. If you try it out buy a small beverage in a plastic botttle for a fuel bottle and use the windscreen from your msr.