There isn't much out there describing how to do the wiring yourself - at least less than what's available for a 1.6 FI swap. You'll pretty much have to figure it out with the Samurai and Swift FSM wiring diagrams
One thing that has not been pointed out...
The DOHC 1.3 is a transverse-mounted engine. As a result (and probably just to make the swap that much harder), the distributor is mounted axially instead of at a right angle to the driving camshaft. As a result, you'll need to locate an elusive "right angle adapter" or clearance the firewall for the distrbutor.
I hope that this helps!