1) The mount inserts:

The inserts are designed to stiffen stock engine mounts that are in reasonably good shape... but given the age of the car, I'd go for new OEM-equivalent mounts instead.
The inserts will increase the amount of engine vibration transmitted to the frame of the car, while new OEM mounts will fix the problem and maintain the stock levels of vibration isolation.

2) Headlight wiring... what's the problem? Does "jacked" mean your headlamps were stolen, crushed, sold on the black market?
If I don't know what's broken, I can't help ya fix it.