Going to do my own 350z Speedo cluster and Volts oil and Info screen soon, I will upload some photos of it all as i do it and after I've done it I will also be thinking of doing it for people who want it done.
You will need to send me your cluster so the milage is the same,
Tell me what cluster backing you want from some options i can send to you from a website,
Tell me what colour LED's you want,
Ill let you no what the price is and then it is paid for before i start work.
Ill do the work and send it back (1-2 cluster done over a weekend)
Im in the Kent area so if you want to drop cluster of your self you can (Near Bluewater)
https://goo.gl/images/Jd875k as an example
More info once I've done my own