There's a huge variation in the quality (and hence the cost) of kitchen units, so its difficult to comment. Also spotlights vary in cost and quality. You are probably getting about 18 man days of work included in this, which sounds about right. Be aware that electrical installation work in kitchens (and bathrooms) now come under Building Regulations, and your builder MUST either use an electrician who is registered for Part P Building Regs, or you must apply for BR approval for this aspect of the work (and hence have it inspected through Building Control).