In the late 60s or early 70s, I bought a well-used Fiat 500 as a cheap runabout for the then-SWMBO. It was a hoot to drive.
The clutch was shagged when I bought it, but all I did was put stacks of bricks under the engine, unbolt the bellhousing and then roll the car forward leaving the engine sitting on the bricks ready for a new clutch. Cost me about twenty quid as far as I recall. Reassembly is a simple reversal of that process. A bit of a simplification, but not that much.
That car had a speedo and a low fuel idiot light. That was it for the dashboard instrumentation.