Are any bits from this useable with ease??

Ebay link

Looked at that earlier, and recond that it would need fiat senders for all of the guages.
Not sure about fiat electrics but senders from other cars might work with the guages.

You should be able to use just about any senders by applying resisters either in parallel or serial to make the resistance ranges match.

Works on most things, although there are some odd senders out there which have a totally different overall range, which is harder to deal with.

Rog

I posted about this in Steve Graber's Dash thread (may have been the fuel sender one!)

Restistors in parallel
1/res_one + 1/res-two = 1/Totalres

Resistors in series
Resone +Restwo = Totalres