Lashbear, I am sorry to hear your RV didn't pan out but iSm is right, I really don't think that there is anywhere you can park an RV in the park. Maybe even with a reserved spot. I faintly recall reading this somewhere.
I don't like the canvas tents, either.
LOL But the 'lodge' is just what they call it, it isn't built like your typical lodge. Sort of {to me} like a 'motor lodge'? The biggest rooms are the family rooms but they are very hard to get. They only have 4 of them and they hold about 6 but you could reasonably put down sleeping bags....I'm just saying.
This is really quite exciting!! Do check out the lodging that is available. So far, the least expensive rooms w/a bath are the Curry Village cabins. They are hard to get, too, though.
If the RV is out for Yosemite, is it also out for San Simeon? If so, the sands by the sea motel
http://www.sandsmotel.com/ is reasonable. Right next door is the BW Cavalier is nice but a bit more pricey. But, they have nice rooms with fireplaces.....
Do you have AAA?