That's a really impressive price, given that I can see from the photos they are Sharp NU-180 panels! I'd expect the panels alone to cost about £5,300!
Looks like a nice and easy install. I've got the same kind of tiles on my roof... Maybe I'll give it a go myself. At the moment I've got 320W of panels sitting the lawn today propped up on plastic chairs because I haven't figured out where to put them (the garden wall is full and the garage roof probably can't take any more weight

).
Out of interest, how much did the brackets and strut cost?
Scaffolding... Don't get me started on scaffolding

When I lived in me previous apartment, the building management company insisted on exterior maintenance work every five years and the maintenance company charged £13,000 for scaffolding to go up and badly paint the window frames (flaked off the next year). I soon discovered why it cost £13,000 to hire some scaffolding... It turned up brand new, still in the wrappers. They'd charged us to set a mate up in a new scaffolding business...