For pod, i never found a 3 gauge pod i liked for the dash, so suggest a pillar pod.
I've always fitted the pressure sensor at the existing one, as it's simple, easy and CLEAN. Fitting a sandwich plate means changing the oil, but it can get a bit messy. For the temp sensor, i removed the plug to the right(IIRC)ontop of the block, then drilled and tapped a thread to suit.