Multi-bit or R2R or ladder dacs (all the same type, different names for it) are the way to go, when trying to achieve that analog sound from digital.
There are some from the far east that come in at about the $2k mark, even as low as $1k used (but they disappear fast).
There are some from the far east that come in at about the $2k mark, even as low as $1k used (but they disappear fast).