Ford FE pistons in a 413 /426

Pistons are reasonably priced and available for 413/426, as long as you want low compression cast pistons. If you want forged/decent C.R., you might want to look at other solutions.
Assuming a $1000 set of custom pistons, built exactly for the app, would Ford or chevy be practical?
The Chevy, assuming a compression height that would work, you would need to bush stock Mopar rods, and cut custom valve reliefs, or, if not a workable c.h., then you need crankshaft work for long chevy rods, long chevy rods, and still need valve reliefs if the piston is high enough in the cylinder to give more compression than the cast replacements.
Now the Ford might work, I don't know the pin height difference, the pin bore difference,or even whether the bore size is more available as a forged piston for the ford.(428 c.j.?) The valve relief locations in half of the Ford pistons would be wrong for the 413/426, valve layout is different
If you factor in all the other machine work necessary to make something else work, the custom piston built EXACTLY as you want it, might be the best answer.