Hi matty
I had the same issue trying to get nismo gauges,i gave up because of price and used vdo white series and fitted them into origonal position and i could also chose the gauges i wanted.
Water temp,oil temp and oil presser,i have even used the oem front cover they look like factory.vdo was the best option because they are very accurate and the face bevel was small.
so they fitted perfectly,give me your email address and i will send you pic.s if you would like
stuart 0409135950