Im looking for some relativley inexpensive gauges that do the job well. i also wont be boosting any higher than 10lbs(6.5lbs for a long time too) and was wondering if there were any gauges that went up to say 15lbs, or 1 bar. also what oil press. gauge range should i get? up to what psi?(and exactly what does the psi of the oil let you know? if its below normal what is wrong,etc.?). thanks.

and, a good place to mount them. i will have those two and my digital display a/f wideband. i want to see them, but would prefer others not to notice them if possible.