I may be able to do a deal, but I don't know what service pack you were looking at. Let me know and I'll see what I can do.
We're pretty stuck on courier charges and they are too high for NI, but we only charge what we have to pay. We're looking at setting up a new system using the Royal Mail, so I think NI would cost the same as mainland UK, but due to restrictions with oil and thing like octane boosters, it's taking quite a while to work out what we can and can't do.