Tiger 800 Triumph Xc800 Instrument Kit

Hi Guys I have a 800XC that needs a cluster I have been told I need a T2503727 instrument kit but I can only find a T2503134. .a new ignition an ECU was installed the 2 clocks look identical
1, will it make a difference
2, do I need to change the harness if the kit is the wrong part
3, what is the solution to get the bike running
4 how can one check the ECU code versus instrument kit versus VIN no.

I have the ECU came with the crashed bike. Thanks for any info in advance

 

I am starting to regret this bike due to the second hand spares that seems to be in the hands of a few arseholes in South Africa. SAD situation when you cant be honest. So far Triumph-SA has been the only helpful people but the cost of buying new is ridicules, and most definitely not going to get bikes back on the road that has been crashed.