In Theory?? L76 to LS3 conversion?

[Yenko68]

So far the only place that I found a complete kit with everything including a new harness and ecu was MAST. I have not found any other kits yet except PACE Performance gave me a bunch of part numbers . Both kits offer the same HP numbers. Unless people sell a kit I'm not aware of where they sell the parts and offer a tune I don't know my options. Id rather not have to deal with a shop and tuner.