Ignorant Gauge questions, ^^^^^^^^^^^^^^^^ Options

[BMXerror]

Hey all. I've got a '70 with practically no instrumentation. There's a tach, a speedo, and a "combo" gauge with a fuel gauge, gen. light (yellow?) and an oil pressure light (Green?). I'm trying to change this by adding CHT, Oil Temperature, and Oil Pressure gauges.
Stupid question here, but where do you tie the oil gauges into the system? Do I have to make up some fittings for the temp gauge, or is there an unused port somewhere on the engine?
Also, the dual pressure sender that I got from Pelican comes out into what looks like two oil fittings, not two electrical tabs. (IMG:style_emoticons/default/WTF.gif)
Finally, would there be a problem with cutting the CHT wires to size? They won't squeeze through the loom with the connectors on, but as I understand it, the CHT gauge works differently than others (VDO cockpit CHT gauge). I can solder pretty damn well, but I don't want to be messing with something I don't understand.
Any help on any or all of these would be great. (IMG:style_emoticons/default/beerchug.gif)
Mark D.