I might cry

I don't know what current prices are for a stroker crank, but I was told a cast crank for the 340 can be had for less than $400. Probably about the same as turning a 360 crank. For a mild street engine they claim cast is OK, so that would take care of the crank.

I think for $7,000 I would go with a crate. You can get complete engine intake to oil pan with some warranty and change to spare for the headers, carb and other goodies