Advice
A: Change the subject of the thread from 'needed' to 'advice needed' befoer a moderator locks the thread or moves it to the Wanted to Buy forum.
B. Good news is you can do some testing of the instrument panel gages with some basic equipment.
1. Do a resistance check on all of them.
For the thermal gages - oil pressure, coolant temperature, fuel. There should be resistance. If its in spec, great, time to see if they work. For the ammeter, there should be zero resistance. Touch the probes together first - that will be the zero. Then check the ammeter. If the studs are tight and no measurable resistance, then its probably OK.
2. For the thermal gages. These can be driven with a couple of C or D cell batteries in series. This will reveal if they work. Or even better yet if they are on the bench, get yourself some resistors or a variable resistor (potentiometer) and a 12 - 14 volt power supply (a car battery will work fine). Power the Instrument Voltage regulator in the fuel gage and use jumpers to hook up the gages to the resistors.
This would be the most thorough test. If the IVR isn't working, then get that fixed or replaced.