Simple fact, you never know. The half dome will more than likely be fine. I'd say 90%. If you want a 100%, you have to go 4 season. Tipi, pyramid, or 4 season tent. I like a pyramid. You'll have to get happy with floorless if you go tipi or mid.
Sleeping pad. Thermarest self inflating or insulated fully inflatable. I have a neoair insulated and a Klymit static V insulated. Both have done well and are warm pads. Self inflating are a little more durable, but are heavier. Ones to look at are the Neoair, Exped downmat or synmat, Big Agnes and Klymit for a budget option. Take a repair kit and learn how to find leaks.
I use an EE 20 degree down quilt until late season, then go to a -20 full down bag when night temps hit 10 and colder. I sleep hot, though. I've used this quilt in Montana, Colorado and Alaska without issue. If you like a bag, look at the Big Agnes Lost Ranger, or Mountain Hardware Lamina bags. There are others, but I've used these.
If you truck camp, use the same tent, or get a bigger cheap one and sleep on a fat foam pad with the heaviest sleeping bag known to man. Weight means nothing truck camping, just be mindful of bulk. Those big cheap 6 man tents are just fine for a base camp in most cases.
Jeremy