I would only be able to do this for you remotely since I'm located in the USA. My plan for the upgrade would be to evaluate exactly what hardware you currently have and what version of code. I would then look at the latest stable release of code and see if this upgrade needs a step upgrade, and if this is required I would plan accordingly with the necessary IOS step upgrades required to reach the version we are after. I have performed many upgrades remote on Nexus switches, so I don't expect this to be any different.
I'm setting my delivery time to 5 days to to available for any potential issues that could come up after the upgrade.
My background includes Nexus 7K's, 5K's with 2248 Fabric Extenders, and Nexus 9K's.
If you would like to speak over the phone, please feel free to contact me via phone at 1.423.914.7746
I look forward to working with you soon!
-Matt