Ls3 Engine builder?

[6t9 camaro]

Hello there I'm in the market for a FI Ls3 stroker but I'm stuck with who to chose to buy a engine from? I would like to buy a long block. I already have all turbos/pipes everything ready to go I just need the engine. Now I feel my top 3 options are
#1 livernois motorsports
#2 mast motorsports
#3 golen engines
Now I want this thing to put out about 800 to 1000hp and I will put whatever amount of boost to it to get there. I just need to find a builder that can provide the quality build I'm looking for! I don't want some massed produced stroker junk! I search on line for reviews but I can find pros and cons to all of them so I'm stumped!!! I know there are quite a few people on this forum that have probably used products from these places and I value your opinions.
Thanks