that's about what i would charge, Bill. £40 call-out to put together unpowered. £80 - £100 to reinstate in working order, including sorting the rat's nest out.
because it's a mess. no self respecting electrician or alarm engineer would create such an untidy rat's nest and if i were to service the system, i would tidy it up as a matter of professional pride. By the way, what area do do live in?