Looking for a Haynes Manual for a Mk2 Orion (1987).. can't seem to find one (?)

I have been scouring ebay, looking for a book with a picture of a Mk2 Orion on the front but cannot find one, but the manual that apparently covers the date of the model orion that i have has a picture of a Mk1 Orion on the cover?

Just want to be sure before i buy it really, will this version of the manual definately cover my 1987 Mk2?



Probably seems like a silly question, but i didn't realise that the Mk1 and Mk2 could be that similar (?)