I think it would be possible, I'm moving a heap up to the cloud, but I'm also happy to keep a massive amount of local cache as well (I think I have 100Gb set atm)
Anyway, I really want to come back to CloudDrive, I find the drives more responsive for browsing, and I like the product more. But until the down and up are working at a more reasonable rate, then I can't work with it.
My NetDrive works mostly perfectly, just uses (well seems to at least) more resources than CloudDrive.