anything thats been written off in any way shape or form you have to MOT it then take it for a vic check at ministry place.
lot of faff and nonsense written about it but its straight forward and simpels, if the engine number and chassi number reg mark all tally up it'll go through not a bother , i've never had an issue with a VIC check
cars with recorded damage are nothing to be scared of infact they are often a better buy. as if its damaged you know why it's for sale if it's repared you know where to look for bodgeing and generaly its a car the previous owner didn't want to sell.
the real horrors i've found are the much younger cars from the high value marques, poeple go to a lot of effort on those to keep the presented history clean and the real events hidden, it is also worth reincarnating some pritty horrific wrecks