Personally, I like the aged and repaired versions...but with a twist.
An heirloomed weapon should look aged, but aged respectably..not worn down. It's a fine line.
For example, an heirloomed sword might have a new grip put on it (new and shiny) but the blade will look aged (matured might be the word). It would get a nice patina...might have some pitting in the metal (depending how old it is).
I like the realistic aging. If the weapon looks too different, it isn't an heirloom..its a new weapon! For example a sword heirloomed once might get a slightly repaired-looking grip. The second heirloom would get a new shiny grip, but a slightly aged blade. The 3rd heirloom would get runes inscribed, or a new fancy handle, and a blade that has aged slightly, but evenly, so the whole blade has an evenly aged patina. Dunno, just brainstorming.
Just my 2 cents!
Overall, everything looks awesome.