In need of 283 .030 pistons

[66 C10 383]

I have the same dilemma with a 383 I had a guy machine & assemble for me. The pistons were chosen with the head gaskets for. 045" quench. Long story short, he didn't zero deck the block like I asked him to. Found out later my pistons are
017" down from TDC.

I hadn't installed the engine or even fired it up but he's out of business now.

Since it's a 2pc rms block & I'm running hydraulic roller cam I thought about just putting everything along with a different 3.75 crank into a 1pc rms roller block.