Here is a short summary of parts I used to install megasquirt:
MS1 DIY kit 203.00 (6-8 hours to build)
8' wire harness 67.00
Tuning cable 5.50 (to use with laptop)
Hall effect crank sensor 34.00
36-1 trigger wheel 30.00
DIY MS stimulator 45.00 (1 hour to build)
Total $384.00
If you have the extra coin you can spend about $150 and have MS built for you.
I opted out but I would suggest:
DIY Relay board 64.00
Relay cable 85.00
(I used a sub fuse box and relays from my donor Tracker engine)
Other expenses with this engine swap:
High flow fuel pump + - 100.00
Engine swap kit (motor mounts, engine adapter plate) + - 175.00
Heat shrink tubing, connectors, new clutch while your at it?
May as well call it about $600-$800. You can also get a 36-1 wheel sprocket from a Ford XXXX in a scrapyard for peanuts. It does not fit perfectly onto the 1.6 crank though. I would suggest the few dollars to buy a sprocket, punch out the center, then weld it in place one you have established the hall sensor location on the correct tooth at TDC. Its also possible to drill/tap then bolt the sprocket on the crank pulley.