As far as switches for starter interlock, on an LT:
Side stand switch
Kill switch
EITHER the clutch switch OR Neutral indicator circuit in the inst cluster
Any of those above will keep the starter circuit from energizing as long as all your fuses, relays and such are good.
Was is stored in a rodent free environment? Little critters love wiring.
Does the fuel pump run/prime when you turn on the key.
Check and clean all of the grounds. Check your fuses.
Get yourself some electrical contact cleaner for the ECU multi-pin plug, the 4pin plug at the right rear of the fuel tank(common for no pump conditions).
Check the stickies page, there is a flow chart for things to check with a no start.