Update! The hoses arrived, I'm really impressed by the quality of them so I can't really complain for £100 So I started fitting the hoses and took the thermostat housing apart to check the gaskets, check the housing for cracks, and fit the new 70 degree Thermostat. Housing stripped down New thermostat New VS old Unfortunately, because it's bank holiday Monday today, I couldn't get the stainless bolts to replace the rust-ridden ones from the housing Hopefully I'll have time tomorrow to get them, finish fitting the coolant hoses, bleed the system and finally take it for a spin!