Ted,
I bet you could to this. I have already made all the silly mistakes and found all the ways not to do it. Just do what I did and it will work.
I was a computer hardware designer and a embedded firmware engineer in a previous life. So the electrical and hardware assembly was not that hard for me.
It was working out the mechanical and physical aspects that took the most time. It is the tuning that frightens me the most. Manly because I have no experience in that aspect of EFI.
I purchased the pro version of Tuner studio which is a terrific help in getting things right under all the other conditions. All you need is to set up the AFR tables, preliminary VE table and the spark advance table. The base tune is provided with the ECU firmware so you don't have to start from scratch. The base tune is good enough to get it started.
Getting it started, warmed up and idle is half the battle. After that the tuner studio has a function that will check the settings against what you want the final AFR to be and make adjustment to the VE table to bring the AFR inline with whats in the table. There is a free version that takes a lot of measurements and makes recommendations then you make the changes manually. But in my opinion the paid auto-tune version is worth the price.
Yesterday I had tuned around idle and low RPM with no load. The rest of the VE table was just based off default "base tune". When I left the garage it performed very well under the conditions I had tuned for but as I put it under different loading conditions I could feel it hesitate briefly then the auto tune would start to work out and correct the setting and shortly it was pulling strong. The longer you drive it around with Auto tune the better it gets and eventually it is tuned for all speed and load conditions.
here s a great video that will give you an idea of how helpful tuner studio is.
As for the firmware in the ECU...I gave up on that in the middle of my first project. The guys at Speeduino were so far ahead it didn't make sense to roll my own. All you need is a PC and the development tools and a USB port. They make it simple to download the firmware to the ECU. And the guys at the Speeduino forum are so
very friendly and helpful. When you get stumped they can walk you through getting un-stumped.
And since I have already done it I am sure you can do it too. I bet there are hundreds of old Connies sitting in garages and sheds that have not been started in years. Good candidates for a interesting and fun project.
Here is the document that names the different steps I took that I think anyone can follow. Anyone with basic mechanical/electrical skills will not have too much difficulty in replicating what I have done.
http://gpineau.com/Public_files/https://youtu.be/x4RBi8Xf92Y