I’m thinking NP.

383 shortblock for $2k. So you don’t have to worry about botching the bottom end.

Plus Edlebrock top end kit for $3k.

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(Bottom pic is from Edlebrock’s website, top is from Jegs.)

And that’s everything you need from gaskets to bolts! Although it looks like you’d still need to get your own oil pan and pump. But still, no taking anything to a machine shop. No plasty gauge, just get the engine timing right and bolt everything on and you’re good to go!