I'm seriously considering using the Grimm Off-Road ARB Twin Compressor mount. My question is: How many have used a mount similar to this? I'm worried about the head from the exhaust, but this mount comes with a heat shield. Also, worried about the dirt, and other nasty that may get on it? Would hate to spend almost $800 for compressor and mount then have problems shortly after doing it like the compressor fittings melting, or too much dust and water getting on, and making not work.