Consider this an add on to Samnavy's COPs for Dummies thread for the 1.8 cars.
Here is what I did:
First, find two dead coilpacks for your car and cut off this part
Then you need to remove all the epoxy without damaging any of the pins
Then you solder your wires onto the pins
Then you need to source your COPs.
I found car-part.com to be a pretty good source and I called several places before i got one to agree to cut off the wires on the connectors and include the connectors for me as well all for $70 or so shipped.
If you want to go the other route, read up in Sams thread as he got connectors from Toyota and made his own pins.
My COPs ended up getting here with the entire harness which made it easier for me.
So once you have your OEM connectors finished and solder wires to them (keep in mind that you are pairing up 1&4 and 2&3) you need to measure the distance where you need to strip the wires. Here is what mine looked like.
Once you have done that, slip your heatshrink over all the wires on the harness and solder the first set of Toyota connectors in place and then you can slip the heatshrink on and then shrink it in place.
After you finish this, slip another set of heatshrinks on the wires again for the second set and reapeat the obvious.
Once you have soldered all your wires in place and put the heatshrink in place, you are done with the harness. Now make it look fancy, you can go to any automotive store and get the spiral tubing or if you get lucky like me, you can reuse most of the Toyota harness.
Your harness is now done!
Now go build a bracket or get someone to build you one. As always, use common sense where I left out any details.
Make sure to read the other threads on here by braineack and Sam as they have made it very easy for everyone to learn what you need in this conversion.
Search is your friend.
FWIW, here is my schematic i used as i found it to be pretty easy to read.
Hope this helps as I really can't make it any easier than what I did.