disco 1993 lights help

[Mackie]

Hi I'm new and need advice
i've just bought a disco tdi 200 and have a few problems, I don't know the 1st thing about mechanics but i'm having a go. 1st the head lights wouldn't go off, had to disconnect them at the lights. I've since replaced the relay and they work fine now but the indicators don't yet the hazards do. Is there a relay for the indicators too?
2nd the elctric window drivers side don't work I've removed the motor but I'm now wondering if that could have been another relay needed? if not can the motor be fixed or do i need to replace it?
3rd I was told the heater matrix has been by passed so I've bought a new one is
it difficult to do?
Finally is it possible to put the headlight from the new Disco's onto mine? I think they look boss? Ive just put a brand new battery on too. Can anyone help please. Just want to get it on the road. 've replaced the seats too to leather ones. looks much better.