re: Any primitive backcountry campers on here?

I’m local to the area and do a lot of backpacking including frequent trips to the park. A few things to keep in mind that haven’t been mentioned: RMNP requires the use of approved bear resistant food/smellable storage containers. This usually adds a bit of weight. I haven’t camped at Andrew’s creek/ Andrew’s tarn before but I believe it is a requirement at that site that all waste including human waste be carried out. Keep that in mind and plan accordingly. There are no latrines nearby.
Early July you will be almost guaranteed to run into sporadic snowfields around and above the loch but nothing to really be concerned about unless you’re planning on a much higher elevation hike from Andrew’s creek. Timberline falls should be flowing strong with a lot of snow melt.
What other info do you need? I’m hesitant to give very broad advice but can assist with planning and/or gear selection if you need.