Need some advice before I go down the irreversible path of mixing-up my parts...
My collection has grown to ~50 large assembled sets — consisting of both new retail and older used sets.
I always hope to disassemble and consolidate all the parts for some free-play/MOC. But also want to re-assemble them back to the original sets one day.
For my new retail sets, the bricks are in great condition. For older used sets, some bricks are bit dull/scratched.
Plus even our beloved LEGO isn't perfect, with variations in quality and mold across different time periods.
So in an ideal world, I should separate new/old bricks. But I don't have enough space or money for duplicated sets of storage. Even if I do, it's hard to draw a line on which set is considered "new" v. "old".
I worry that re-assembling the original sets after such a consolidation will be a nightmare.
I imagine the sets will never look the same again with glossy bricks next to scratched bricks. And the mold variations through the years could cause alignment and clutch tightness issues? (e.g. I have even basic 1x2 bricks from ~2000s that have slight misalignment, which I once read was a known production issue?)
Hoping for advice from others who also consolidated their large new/used parts collection, and how to achieve a happy practical balance.