[autoavia]

As for missing parts, I normally build them from scratch, I am not much of an original freak.
The Lola is missing the rear glued on body part, I will shape a new one out of a piece of bass-wood. The Cortina tail lights will be the big challenge .

 Nothing wrong with not going for original. My 1/24 Cox Chaparral had no engine intake trumpets or exhausts so I made them from scratch along with the brake lights and my Lotus 40 was missing the roll bar so I built a replacement from brass tube and fabricated some brake lights. Both were built to be raced so non original parts which don't increase performance were acceptable under club rules although we are also allowed to lock the drop arm and fit a restrictor to stop the guide turning right round.

   

   

 I must admit it would have been a lot easier to buy copies of the original parts but those that were available were expensive and shipping form the USA added even more to the cost so I went with fabricated parts.
 The most difficult parts on your Lola will probably be the rear lights and the rear screen. You might find some modern resin wheel inserts that are a reasonable match if you are lucky.   
 You will probably find those thin wire drop arms flex a fair bit which doesn't help the handling especially on a long fast track.