Help needed identifying instruments.

[Rebuilda]

So i've had these (some of them anyway) for 20 years +, they are beginning to show signs of age / rust and probably need to be re-homed asap however I have no idea what vehicles they were fitted to. 
I wanted to make the set of the orange ones and use them in my kit but with the ford senders and running gear I think it unlikely they will be compatible.

I have two speedo's one reading 4 miles and one new one reading 1 mile, both have a separate knob on a cable for resetting the tripmeter.

IMAG0494 by Adrian Southgate, on Flickr

IMAG0495 by Adrian Southgate, on Flickr

I have one matching tacho, i like to odd angle of both readouts.

IMAG0493 by Adrian Southgate, on Flickr

Both are 80mm and the 8000 rpm top of scale would indicate car (4cyl) not bike.
The protrusion seen in the photo's is the handle of the old tankard I propped them in to take the photo's, not part of the instrument.
I also have the following 52mm gauges.

fuel gauge (and the tank sender float mechanism)

IMAG0498 by Adrian Southgate, on Flickr

Oil temperature (no sender)

IMAG0497 by Adrian Southgate, on Flickr

Water temperature (needs sender to fit pinto engine)

IMAG0496 by Adrian Southgate, on Flickr

I'm pretty sure I had an oil pressure gauge but it appears to not be in the same box so maybe need one of those with a sender too.
Any help identifying the source vehicle would be much appreciated, finding the missing bits equally so. Failing that I'm open to offers...

[composimmonite]

The adjustable red line needle rather than the traditional segment on the face would indicate an aftermarket rev counter. If the speedo's are matching the rev counter then again I'd suspect aftermarket.
The instruments are the Italian version of our Smiths and fitted to numerous vehicles as well as being available as an add on aftermarket accessory. So, for example, whilst you can have an identical Smiths temp gauge fitted to a humble Mini and also a Rolls the same will apply to these aux gauges and doubt anyone can give a definitive answer to original fitment ie same gauge could be an accessory for Fiat 500 or original fitment to a Ferrari.

[outrage]

eBay item number: 261617448230
I think it's aftermarket, judging from the nice box it comes in.

[Rebuilda]

Cheers Chaps.
That would explain why I couldn't track them down as 'parts' for cars rather than 'accessories'.
Bummer
Sender units could be a problem then. I suppose duplicating with the original ford capri dash would give me a rough idea of whats going on, wire them in one at a time and compare readings.
I always expected issues with the speedo, The tacho is pulse driven so should work the same as the ford one, it would just be water temp, oil pressure and temperature that needed senders sorting out and testing.
Guess i'll just have to keep looking for the others
That one in Greece is a good find, never thought to search outside the uk to be honest (DOH)