12v starter relay connections query

[rrhorton]

The 31 coupe I purchased was not wired however the previous owner did convert some things to 12 volt neg ground. The generator was rewired with new cutout installed on top. The headlights were redone with quartz halogen bulbs. The starter switch was replaced with a non-locking type and the distributor was converted to 12v electronic. The starter was converted and a generic 4 lug starter relay was installed. My question is how to wire the starter and to provide power to the ammeter and interior lights. Also I need to know how wire in the start button on the column.

The starter relay has two big lugs on the side and a smaller "s" and "i" lug on the top. I know the positive cable from the battery goes to one big lug and the other big lug is attached to the starter solenoid. What comes next?