I don’t know of any. Best bet would be to find someone who is taking their plane out of town for that week, but I have no idea how to do that (other than this forum). Since sub-letting is not allowed people have to be careful about any advertising of that nature. You could try calling the FBO (‘Three Rivers’); I have no idea what they might charge or if they have any space. There are lots of transient tie-downs available. Strongly suggest a cover or at least a solar reflector for the windscreen. August in LVK is like the desert.
