the best advice i can give you for gauges is dont go cheap......3 of the 4 were used and in perfect shape, i bought the FP gauge new with all hardware. i have about $600.00 in gauges, i have the Isspro/Diprocol "Optix" series with 35# boost/full sweep trans/100# fuel pressure and the 1600' degree pyro with a quad pod from Ebay....for the same price you have listed above...Raul normally has some good deals, remember don go cheap!!!!
NOTE: these gauges match the OEM cluster perfect!!!!