coco

Hi, just joined and wondered if anyone could help me, i want to no if i can find out what gearbox code should be in my cab, i no its an 020 box. i wanted to find out what ratios were in the box from new. chassis no wvwzzz15zgk005320. does any one have chassis dimensions so i can she if she is straight. ive owned the car for about 10 years, i bumped the front about 5 years ago and she as been parked up since, i want to fully restore her.
Thanks phil

also i can not find a paint code, she is white, can it be found of the chassis number?