Don't know what that is. My house is half basement and half crawl space. The crawl space has about two or three feet of room (not that I'd actually crawl in it).
The plumber didn't seem to think changing over to all PVC on the first floor would be a big deal but the second would pose a problem he said. Although, there is only one bathroom and what used to be a kitchen. The pipes run up to the second floor through my kitchen as do all of the radiator pipes (those do not ALL run through my kitchen).
Thank you for advice. I will check with electricians on the wiring and save up to do the PVC first.