Ah I see. Bodie does look great. There are some ghost town-like exhibits near the Death Valley visitor centre at Furnace Creek, but I agree that Bodie should stay if at all possible.
Tioga will be open by July. You could possibly get from El Portal (or Groveland - which is lovely and you have to pass the redwoods on your way into the valley) to Bodie for lunch time ish, a quick look at the sand flies Mono Lake on your way past, and then get to Lone Pine for the night. It’s a former film set town so interesting, and beautifully set between the mountains and the desert.
From there you could take all day to drive through Death Valley via Stovepipe Wells and Furnace Creek stopping at all the points along the road. A detour to Badwater Basin and Artists’ Drive will take about 90 mins. You’d then get to Vegas in time to chill before bed.
It will be stupidly hot, and you absolutely must fill up with gas before you start and travel with loads of water (and Gatorade). There’s a great ice cream parlour at Furnace Creek Ranch.
You presumably know you can buy an annual National Parks pass that gets you and a car full into all the National parks for $80 for the year?
Another tip - get an ice cooler from a supermarket. They are about $7 and will keep cold things cool for a while while you’re out on the road, longer if you can freeze ice packs/bottles of water or buy bags of ice from subsequent supermarkets when you stock up on drinks.
We were in Arizona, Utah and Death Valley last summer (madness, to be honest, but it was our window of opportunity) and it was insanely hot. Being outside was uncomfortable whenever we were at low elevations during daylight hours, so chilling by the pool in Vegas might not be a realistic plan.
Did I mention ice and lots of drinks? 😀