But depending on the issue you may be able to do that yourself or hold on it. My understanding is things connected to timing chains/belts shouldn't be risked.
I wouldn't know where to begin. As much as I'd like to. I've changed the battery, the ignition leads and a brake light and that's about where my knowledge ends.
It's just gone up to £2k as they've found some other issues inc rear calliper . Bleugh.