Welcome!
The diesel tach is different than the gas tach, so you'd either have to swap the tachometer, or use a converter of some sort to make it work.
The oil pressure and the voltmeter are one wire deals--but if you don't have an oil pressure sender (it'll be on the right side of the engine, towards the back--looks like a hockey puck on the side of the engine) you'll need to add one. It should have a yellow wire, with brown stripes (maybe they were red stripes) if memory serves. What you have now is most likely just an oil pressure switch--it just indicates whether there is or is not pressure--not how much.
You can also take individual guages out of each cluster and put them in other clusters. For instance, I took the diesel tach out of the LN130 Surf cluster and put it into the gas cluster (so I have the gasoline oil pressure, voltmeter, water temp, and fuel gauge, with the diesel tach, and "gas" speedometer).
The speedometer just has to have the same connection on the back--basically if it's a cable speedo or an electric one.
So, yes, the guage cluster will work, but probably not without some work--installing an oil pressure sender and running the wiring for it through the firewall and along the dash.
Dan