440 Piston Question

I went thru something very similar about 15 years ago. Put together a motor used stock rods and Speed Pro pistons. Ending up having an issue with the cam and tore motor apart and bought a set of Scat rods since I had a little extra money. Machine shop ended up breaking 2 of the 8 pistons when removing them. So after buying 2 replacements I got the engine back together. Being cheap and on a budget at the time ended up costing me more than if I'd just bought good stuff to begin with. I also think that a machine shop SHOULD be able to do this, but as with anything some shops are better than others.