Yeah good condition junk yard stuff is fine, but it is more relative to a complete engine swap. That is my opinion though. Sure you can use coils and harnesses and all that from the bone yard, but if someone knows what the hell they are doing and what has to be done, it is money well spent, even on a budget to have them do it.
Yeah I know Anthony pretty well, we have talked quite a few times, I wasn't aware that he was making harnesses to make the EFI connection system work and it is doubtful, but he can chime in here. I wouldn't think that it is rocket science, and highly doubt he is going to do the grafting for next to nothing. I am not sure either if he puts all new connectors on the harness either, which EFI does.
You should really add it all up, and I am not trying to be a dick, but think about it a little bit. you are going to have to buy at least the reluctor and all that stuff from them, that is over 500 bucks. Say on the cheap side Anthony charges 300 bucks to make an LT1 harness work, you are still going to need an LS computer for probably 100 bucks I would assume, set of coils and wires and all that at least 150 bucks if not more. that is about 1050 and without all of the little nick nack sh** that you would need, connectors that are going to break etc.
As you can see it adds up quickly, let alone I am sure that you are going to have to tune the LS computer for the LT car, and I am betting that the EFI guys already have that nailed down instead of scratching your head trying to figure stuff out.
I just don't see the advantage if you are going with this setup to half ass it as I said to save a couple hundred bucks, isn't worth it in my eyes. Tell me where I am wrong in my opinion. And honestly I think that the only benefit in going with an EFI setup is if you have a built motor and need more tuning options that the LS computer is going to give you, I don't think that if it is a factory motor you are going to see any benefit.
Also a complete engine swap is a COMPLETELY different scenario, unless I read it wrong it isn't what he is inquiring about.