Adapter for Autometer Oil Pressure Gauge

[Jookmasta]

well first, lemme state that i did the search and didnt come up with anything useful. im looking to hook up a mechanical autometer oil pressure gauge and i dont want to retap the block. the other little thing is that i want to keep my sensor that reads out on the dash. ive done my homework and i have everything needed to make this gauge functional as well as keep the sensor on the dash. i have the t joint and i have the lines and all that stuff but im missing the adapter that converts the 1/8 NPT to the metric size for the block. i went to an autoshop and me and the workers determined that it takes a 10mm size but the thread is 1.5 That thread is basically the cause of all the problems. does anyone know where i could get this or has anyone solved this problem?

[slw240sx]

there is one out there, its like 50$ though and i forget the site that had it.