At a guess, the original bike is made in the 1970s so is now 'mot exempt'. Some things are also 'not tested' if not fitted.....
DS1000 / red in Purley. https://www.ebay.co.uk/itm/25661377...JkPBMs34TJVPGZkFAqM1U1iA==|tkp:Bk9SR9jjpKiyZA
A standout moment from the crowd comes to mind here, if that's your bag and the price's low then perhaps a very fun bike for a few seasons.
Another Cafe Racer … don’t know whether to laugh or cry ! https://www.ebay.co.uk/itm/35599820...Wex47KAQUK&var=&widget_ver=artemis&media=COPY
https://www.ebay.co.uk/itm/22634304...didy4coGBYsFEQSXeACO+A1g==|tkp:Bk9SR879vrC7ZA @Chris another bargain.