Anyway, I did the work on my friends bike and all worked out fine.
He paid me £120 upfront which also covered costs of mudguards and tyres I bought for him and 2 new gear cables and a couple of my spare headset spacers he needed fitting. So all in all, £60 for the work doing and he was very happy when he picked the bike up.
Had a little issue which was pure stupidity and quite comical.
He said he’d be interested in me doing the same work every 2 month for £50, full strip down and clean and rebuild which I’m happy with.
Also got one of his friends interested in the same work on an Orange Evo 8, it’s not much cash but it’s all going towards saving for a mortgage and it all adds up, couple of my other work colleagues are starting to cycle so gonna see if they’re interested too.