I use this. There is no option for propane but it gets to 700f and always delivers wood fired flavour. Since you are more vegetarian than I it's probably overkill for you though there are significantly smaller versions.
Oddly, I don't have any pictures of pizza on LaMar, only from Tex. Here's a loaf of bread baking in LaMar though.
You can do it on any grill with a stone. Actually my little picnic table top Weber is better than the bigger charcoal kettle one for pizza. The gas grill is far easier and quicker.