""""""Boy new drums with new shoes makes for a tight fit. I can just turn em by hand, the drums."""""""
There should be enough clearance shoes to drum to allow for shoe expansion when you use the brakes. make sure the adjusters allow complete retraction. the fix is to arc the shoes or turn the drums....and Plan A is certainly better.
"""""Bet they break in fast. """"
The will NOT break in unless you severely abuse the brakes and smoke them or drive a lot of miles with the brake applied...
<(.
You might remove the drums and mark their positions... remove the shoes and mark their positions also.
Lay the shoes inside the drums in their "installed" positions and use a feler guage to see if the middle to the edges of the shoes are too fat (not in the correct arc of the drums).
Your problem will either be that....OR the lining is not the right thickness for the drum diameter (too thick).
The days of arcing shoes before installing is long gone because of airborne contaminants. You MAY be able to find a "brake shop" that still has an arcing stand. If so they will want all four corners and drums/shoes marked to their positions. You should also tell them that the brakes are not self energizing If you are using the original early drum setup so they can grind the correct cam on the shoes.
Hacking /whacking /home grinding will not be the answer.