What to look for why buying an older model
 

Hi all. This is my first post so I apologise in advance if I upset anyone in anyway. I am looking at buying an R55 Cooper S 2017. Mileage 88k. Asking price £5,000. I’ve been told a new fuel pump is being fitted and that the sunroof doesn’t work due to the plastic track failing. Not having a clue about what to look for or ask, can anyone advise me on if this is a good price and if I should be asking any particular questions like timing belt etc. Thank you so much in advance.