I have just checked the resistors and they are 37 Ohms. And they are Ceramic make up I thnk.
The relays I have found are hard to narrow down to specfic type. I think there only about £3.00, but I would just take one in to the shop.
Sorry about the delay in answering, but unfortunately I had an accident yesterday and broke my hand. Bloody dog tripped me over and down the stairs I went !
So much for taking it to the lake ths weekend! Hands in plaster dont control andsets very well!
Paul