Let the machinist order the parts, after he/she has bored the block to ascertain where it cleans up. Then, AFTER the pistons have arrived, he can can correctly hone-fit the clearance. Same goes for the Crankgrinding, etc., etc.
Tech Note; 383 .030" over Pistons. 1 set new "outa the box" may measure 4.2785 to 4.2788. a second set, "outa the box" may measure 4.2772 to 4.2774. If you're wanting .0022" clearance, why would you "PREHONE" your block to 4.2800" ? No way to tell which set you're gonna get until you recieve them and measure.
The LAST guy you wanna beat pricewise is your engine machinist. Find a GOOD, REPUTABLE shop, and let them do their thing, PERIOD !
If you want Federal Mogul parts, tell them that, I'm sure it's no problem. But, PAY THEIR PRICE, don't try and nickel and dime crap, lest ye pay elsewhere !
You get what you pay for is generally a good rule of thumb, but, the most important thing is to find a GOOD shop, and NOT cheap out !
Ask them up front if they have a torque plate for a BB Mopar ! Good indicator of their commitment to quality product and cylinders. If they respond "you don't need that", WALK AWAY !
Just my 2 cents