A bit far for me I am afraid - I am sure some kind soul will be along soon. Have you tried an ad on Gumtree - I used to hire students for the day to help with stuff I would struggle to do on my own. I sold it as experience and a bit of extra cash - I got LOADS of people looking to help - be careful who you pick though if your letting them into your garage and tools etc.
I had a student help who was studying mechanical engineering at uni and wanted to have a better understanding of how things actually worked in real life.