Additional gauges

["Ken C" <sdspitfire@worldnet.att.net>]

Spitlisters,

Thinking of adding an oil pressure gauge and voltmeter gauge to the '72
Spit. (the Smith's catalog is great!  http://www.xks.com/Pages/smiths.htm).
I'm leaning towards individual gauges.

Got two questions;

Location, One gauge can be located on the blank, right-hand dash panel
(LHD), in fact, there's a hole in the metal backing, where would you put the
other ? Or, both in an under-dash mount ?

Electrical v. mechanical, advantages / disadvantages to either ?

TIA,  Ken C