The Londoners that are in Cornwall are generally OVERSPILL, ie, not wanted or not needed in their own community, do you really expect the Cornish to welcome them?
Mate part 2 your looking at 120-130 a day doin 10s its a pricey place to live mind but theres some good firms to work for but also some bad ones same as anywhere,your bigger firms are Hewaswater,Ltc,Chris sedgeman,Fred champions there spread out across the county so dependant on where your looking at aim for one of those 1st mate,hope that helps you out bud