It is uncommon for an instrument panel to blow tracks like that. Was the circuit board damaged by moisture/corrosion? If there is an electrical fault somewhere in the wiring, you'll need to rectify it before replacing it (I'd recommend sourcing a whole used instrument cluster and installing it). Try tortron's suggestion of running jumpers on the panel just to see if you can get the gauges to work first. Don't solder them in though - only test the gauges out for function. If they work then I'd get another cluster, it's really not worth the headache of having a bunch of bridging wires all over the circuit board (IMO)