'white' smoke generally is steam, and can mean a blown head gasket or worse.. like a cracked block or head.
is there water ( emulsion) in the oil.. or oily sheens in the radiator water?
since you posted she is hard to start cold, this is a good place to start with a compression test.. might have a blown head gasket and geeting leaks between 2 cyls.. making her start rough, blow steam .. etc.. look for steamcleaned spark plugs.
soundguy
soundguy