Chris, take a look at Bugei Trading. They have a wide selection of quality swords available. I believe all are imported and they generally start at around a thousand bucks. You can easily spend many times that buying from a custom sword maker. Now the question is what constitutes an heirloom for you? Is it simply the quality and rarity of the individual blade or is it the blade and its connection to you that makes it a family treasure?
Thanks. A heirloom for me is 100% functional and enduring, with skilled use and reasonable care.
Not looking for craft as art, aside from its intrinsic functional & durable beauty.
I do not collect anything other than keep what will be used.